281421540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1$

素因数の和:304

約数の個数: 240

約数和(自身を含む): 956229120

約数和(自身を除く): 674807580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 41, 45, 54, 57, 60, 76, 81, 82, 90, 95, 108, 114, 123, 135, 162, 164, 171, 180, 190, 205, 223, 228, 246, 270, 285, 324, 342, 369, 380, 405, 410, 446, 492, 513, 540, 570, 615, 669, 684, 738, 779, 810, 820, 855, 892, 1026, 1107, 1115, 1140, 1230, 1338, 1476, 1539, 1558, 1620, 1710, 1845, 2007, 2052, 2214, 2230, 2337, 2460, 2565, 2676, 3078, 3116, 3321, 3345, 3420, 3690, 3895, 4014, 4237, 4428, 4460, 4674, 5130, 5535, 6021, 6156, 6642, 6690, 7011, 7380, 7695, 7790, 8028, 8474, 9143, 9348, 10035, 10260, 11070, 11685, 12042, 12711, 13284, 13380, 14022, 15390, 15580, 16605, 16948, 18063, 18286, 20070, 21033, 21185, 22140, 23370, 24084, 25422, 27429, 28044, 30105, 30780, 33210, 35055, 36126, 36572, 38133, 40140, 42066, 42370, 45715, 46740, 50844, 54858, 60210, 63099, 63555, 66420, 70110, 72252, 76266, 82287, 84132, 84740, 90315, 91430, 105165, 109716, 114399, 120420, 126198, 127110, 137145, 140220, 152532, 164574, 173717, 180630, 182860, 190665, 210330, 228798, 246861, 252396, 254220, 274290, 315495, 329148, 343197, 347434, 361260, 381330, 411435, 420660, 457596, 493722, 521151, 548580, 571995, 630990, 686394, 694868, 740583, 762660, 822870, 868585, 987444, 1042302, 1143990, 1234305, 1261980, 1372788, 1481166, 1563453, 1645740, 1715985, 1737170, 2084604, 2287980, 2468610, 2605755, 2962332, 3126906, 3431970, 3474340, 3702915, 4690359, 4937220, 5211510, 6253812, 6863940, 7405830, 7817265, 9380718, 10423020, 14071077, 14811660, 15634530, 18761436, 23451795, 28142154, 31269060, 46903590, 56284308, 70355385, 93807180, 140710770, 281421540]

約数ペア:

[(1, 281421540), (2, 140710770), (3, 93807180), (4, 70355385), (5, 56284308), (6, 46903590), (9, 31269060), (10, 28142154), (12, 23451795), (15, 18761436), (18, 15634530), (19, 14811660), (20, 14071077), (27, 10423020), (30, 9380718), (36, 7817265), (38, 7405830), (41, 6863940), (45, 6253812), (54, 5211510), (57, 4937220), (60, 4690359), (76, 3702915), (81, 3474340), (82, 3431970), (90, 3126906), (95, 2962332), (108, 2605755), (114, 2468610), (123, 2287980), (135, 2084604), (162, 1737170), (164, 1715985), (171, 1645740), (180, 1563453), (190, 1481166), (205, 1372788), (223, 1261980), (228, 1234305), (246, 1143990), (270, 1042302), (285, 987444), (324, 868585), (342, 822870), (369, 762660), (380, 740583), (405, 694868), (410, 686394), (446, 630990), (492, 571995), (513, 548580), (540, 521151), (570, 493722), (615, 457596), (669, 420660), (684, 411435), (738, 381330), (779, 361260), (810, 347434), (820, 343197), (855, 329148), (892, 315495), (1026, 274290), (1107, 254220), (1115, 252396), (1140, 246861), (1230, 228798), (1338, 210330), (1476, 190665), (1539, 182860), (1558, 180630), (1620, 173717), (1710, 164574), (1845, 152532), (2007, 140220), (2052, 137145), (2214, 127110), (2230, 126198), (2337, 120420), (2460, 114399), (2565, 109716), (2676, 105165), (3078, 91430), (3116, 90315), (3321, 84740), (3345, 84132), (3420, 82287), (3690, 76266), (3895, 72252), (4014, 70110), (4237, 66420), (4428, 63555), (4460, 63099), (4674, 60210), (5130, 54858), (5535, 50844), (6021, 46740), (6156, 45715), (6642, 42370), (6690, 42066), (7011, 40140), (7380, 38133), (7695, 36572), (7790, 36126), (8028, 35055), (8474, 33210), (9143, 30780), (9348, 30105), (10035, 28044), (10260, 27429), (11070, 25422), (11685, 24084), (12042, 23370), (12711, 22140), (13284, 21185), (13380, 21033), (14022, 20070), (15390, 18286), (15580, 18063), (16605, 16948)]