161990010

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:402

約数の個数: 256

約数和(自身を含む): 561254400

約数和(自身を除く): 399264390

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 19, 21, 26, 27, 30, 35, 38, 39, 42, 45, 54, 57, 63, 65, 70, 78, 90, 91, 95, 105, 114, 117, 126, 130, 133, 135, 171, 182, 189, 190, 195, 210, 234, 247, 266, 270, 273, 285, 315, 342, 347, 351, 378, 390, 399, 455, 494, 513, 546, 570, 585, 630, 665, 694, 702, 741, 798, 819, 855, 910, 945, 1026, 1041, 1170, 1197, 1235, 1330, 1365, 1482, 1638, 1710, 1729, 1735, 1755, 1890, 1995, 2082, 2223, 2394, 2429, 2457, 2470, 2565, 2730, 3123, 3458, 3470, 3510, 3591, 3705, 3990, 4095, 4446, 4511, 4858, 4914, 5130, 5187, 5205, 5985, 6246, 6593, 6669, 7182, 7287, 7410, 8190, 8645, 9022, 9369, 10374, 10410, 11115, 11970, 12145, 12285, 13186, 13338, 13533, 14574, 15561, 15615, 17290, 17955, 18738, 19779, 21861, 22230, 22555, 24290, 24570, 25935, 27066, 31122, 31230, 31577, 32965, 33345, 35910, 36435, 39558, 40599, 43722, 45110, 46151, 46683, 46845, 51870, 59337, 63154, 65583, 65930, 66690, 67665, 72870, 77805, 81198, 85709, 92302, 93366, 93690, 94731, 98895, 109305, 118674, 121797, 131166, 135330, 138453, 155610, 157885, 171418, 178011, 189462, 197790, 202995, 218610, 230755, 233415, 243594, 257127, 276906, 284193, 296685, 315770, 327915, 356022, 405990, 415359, 428545, 461510, 466830, 473655, 514254, 568386, 593370, 599963, 608985, 655830, 692265, 771381, 830718, 852579, 857090, 890055, 947310, 1199926, 1217970, 1246077, 1285635, 1384530, 1420965, 1542762, 1705158, 1780110, 1799889, 2076795, 2314143, 2492154, 2571270, 2841930, 2999815, 3599778, 3856905, 4153590, 4262895, 4628286, 5399667, 5999630, 6230385, 7713810, 8525790, 8999445, 10799334, 11570715, 12460770, 16199001, 17998890, 23141430, 26998335, 32398002, 53996670, 80995005, 161990010]

約数ペア:

[(1, 161990010), (2, 80995005), (3, 53996670), (5, 32398002), (6, 26998335), (7, 23141430), (9, 17998890), (10, 16199001), (13, 12460770), (14, 11570715), (15, 10799334), (18, 8999445), (19, 8525790), (21, 7713810), (26, 6230385), (27, 5999630), (30, 5399667), (35, 4628286), (38, 4262895), (39, 4153590), (42, 3856905), (45, 3599778), (54, 2999815), (57, 2841930), (63, 2571270), (65, 2492154), (70, 2314143), (78, 2076795), (90, 1799889), (91, 1780110), (95, 1705158), (105, 1542762), (114, 1420965), (117, 1384530), (126, 1285635), (130, 1246077), (133, 1217970), (135, 1199926), (171, 947310), (182, 890055), (189, 857090), (190, 852579), (195, 830718), (210, 771381), (234, 692265), (247, 655830), (266, 608985), (270, 599963), (273, 593370), (285, 568386), (315, 514254), (342, 473655), (347, 466830), (351, 461510), (378, 428545), (390, 415359), (399, 405990), (455, 356022), (494, 327915), (513, 315770), (546, 296685), (570, 284193), (585, 276906), (630, 257127), (665, 243594), (694, 233415), (702, 230755), (741, 218610), (798, 202995), (819, 197790), (855, 189462), (910, 178011), (945, 171418), (1026, 157885), (1041, 155610), (1170, 138453), (1197, 135330), (1235, 131166), (1330, 121797), (1365, 118674), (1482, 109305), (1638, 98895), (1710, 94731), (1729, 93690), (1735, 93366), (1755, 92302), (1890, 85709), (1995, 81198), (2082, 77805), (2223, 72870), (2394, 67665), (2429, 66690), (2457, 65930), (2470, 65583), (2565, 63154), (2730, 59337), (3123, 51870), (3458, 46845), (3470, 46683), (3510, 46151), (3591, 45110), (3705, 43722), (3990, 40599), (4095, 39558), (4446, 36435), (4511, 35910), (4858, 33345), (4914, 32965), (5130, 31577), (5187, 31230), (5205, 31122), (5985, 27066), (6246, 25935), (6593, 24570), (6669, 24290), (7182, 22555), (7287, 22230), (7410, 21861), (8190, 19779), (8645, 18738), (9022, 17955), (9369, 17290), (10374, 15615), (10410, 15561), (11115, 14574), (11970, 13533), (12145, 13338), (12285, 13186)]