261291420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:706

約数の個数: 240

約数和(自身を含む): 930615840

約数和(自身を除く): 669324420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 27, 30, 36, 38, 39, 45, 52, 54, 57, 60, 65, 76, 78, 81, 90, 95, 108, 114, 117, 130, 135, 156, 162, 171, 180, 190, 195, 228, 234, 247, 260, 270, 285, 324, 342, 351, 380, 390, 405, 468, 494, 513, 540, 570, 585, 653, 684, 702, 741, 780, 810, 855, 988, 1026, 1053, 1140, 1170, 1235, 1306, 1404, 1482, 1539, 1620, 1710, 1755, 1959, 2052, 2106, 2223, 2340, 2470, 2565, 2612, 2964, 3078, 3265, 3420, 3510, 3705, 3918, 4212, 4446, 4940, 5130, 5265, 5877, 6156, 6530, 6669, 7020, 7410, 7695, 7836, 8489, 8892, 9795, 10260, 10530, 11115, 11754, 12407, 13060, 13338, 14820, 15390, 16978, 17631, 19590, 20007, 21060, 22230, 23508, 24814, 25467, 26676, 29385, 30780, 33345, 33956, 35262, 37221, 39180, 40014, 42445, 44460, 49628, 50934, 52893, 58770, 62035, 66690, 70524, 74442, 76401, 80028, 84890, 88155, 100035, 101868, 105786, 111663, 117540, 124070, 127335, 133380, 148884, 152802, 161291, 169780, 176310, 186105, 200070, 211572, 223326, 229203, 248140, 254670, 264465, 305604, 322582, 334989, 352620, 372210, 382005, 400140, 446652, 458406, 483873, 509340, 528930, 558315, 645164, 669978, 687609, 744420, 764010, 806455, 916812, 967746, 1004967, 1057860, 1116630, 1146015, 1339956, 1375218, 1451619, 1528020, 1612910, 1674945, 1935492, 2009934, 2233260, 2292030, 2419365, 2750436, 2903238, 3225820, 3349890, 3438045, 4019868, 4354857, 4584060, 4838730, 5024835, 5806476, 6699780, 6876090, 7258095, 8709714, 9677460, 10049670, 13064571, 13752180, 14516190, 17419428, 20099340, 21774285, 26129142, 29032380, 43548570, 52258284, 65322855, 87097140, 130645710, 261291420]

約数ペア:

[(1, 261291420), (2, 130645710), (3, 87097140), (4, 65322855), (5, 52258284), (6, 43548570), (9, 29032380), (10, 26129142), (12, 21774285), (13, 20099340), (15, 17419428), (18, 14516190), (19, 13752180), (20, 13064571), (26, 10049670), (27, 9677460), (30, 8709714), (36, 7258095), (38, 6876090), (39, 6699780), (45, 5806476), (52, 5024835), (54, 4838730), (57, 4584060), (60, 4354857), (65, 4019868), (76, 3438045), (78, 3349890), (81, 3225820), (90, 2903238), (95, 2750436), (108, 2419365), (114, 2292030), (117, 2233260), (130, 2009934), (135, 1935492), (156, 1674945), (162, 1612910), (171, 1528020), (180, 1451619), (190, 1375218), (195, 1339956), (228, 1146015), (234, 1116630), (247, 1057860), (260, 1004967), (270, 967746), (285, 916812), (324, 806455), (342, 764010), (351, 744420), (380, 687609), (390, 669978), (405, 645164), (468, 558315), (494, 528930), (513, 509340), (540, 483873), (570, 458406), (585, 446652), (653, 400140), (684, 382005), (702, 372210), (741, 352620), (780, 334989), (810, 322582), (855, 305604), (988, 264465), (1026, 254670), (1053, 248140), (1140, 229203), (1170, 223326), (1235, 211572), (1306, 200070), (1404, 186105), (1482, 176310), (1539, 169780), (1620, 161291), (1710, 152802), (1755, 148884), (1959, 133380), (2052, 127335), (2106, 124070), (2223, 117540), (2340, 111663), (2470, 105786), (2565, 101868), (2612, 100035), (2964, 88155), (3078, 84890), (3265, 80028), (3420, 76401), (3510, 74442), (3705, 70524), (3918, 66690), (4212, 62035), (4446, 58770), (4940, 52893), (5130, 50934), (5265, 49628), (5877, 44460), (6156, 42445), (6530, 40014), (6669, 39180), (7020, 37221), (7410, 35262), (7695, 33956), (7836, 33345), (8489, 30780), (8892, 29385), (9795, 26676), (10260, 25467), (10530, 24814), (11115, 23508), (11754, 22230), (12407, 21060), (13060, 20007), (13338, 19590), (14820, 17631), (15390, 16978)]