31231980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1483}}^1$

素因数の和:1517

約数の個数: 120

約数和(自身を含む): 105583632

約数和(自身を除く): 74351652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1053, 1170, 1404, 1483, 1620, 1755, 2106, 2340, 2966, 3510, 4212, 4449, 5265, 5932, 7020, 7415, 8898, 10530, 13347, 14830, 17796, 19279, 21060, 22245, 26694, 29660, 38558, 40041, 44490, 53388, 57837, 66735, 77116, 80082, 88980, 96395, 115674, 120123, 133470, 160164, 173511, 192790, 200205, 231348, 240246, 266940, 289185, 347022, 385580, 400410, 480492, 520533, 578370, 600615, 694044, 800820, 867555, 1041066, 1156740, 1201230, 1561599, 1735110, 2082132, 2402460, 2602665, 3123198, 3470220, 5205330, 6246396, 7807995, 10410660, 15615990, 31231980]

約数ペア:

[(1, 31231980), (2, 15615990), (3, 10410660), (4, 7807995), (5, 6246396), (6, 5205330), (9, 3470220), (10, 3123198), (12, 2602665), (13, 2402460), (15, 2082132), (18, 1735110), (20, 1561599), (26, 1201230), (27, 1156740), (30, 1041066), (36, 867555), (39, 800820), (45, 694044), (52, 600615), (54, 578370), (60, 520533), (65, 480492), (78, 400410), (81, 385580), (90, 347022), (108, 289185), (117, 266940), (130, 240246), (135, 231348), (156, 200205), (162, 192790), (180, 173511), (195, 160164), (234, 133470), (260, 120123), (270, 115674), (324, 96395), (351, 88980), (390, 80082), (405, 77116), (468, 66735), (540, 57837), (585, 53388), (702, 44490), (780, 40041), (810, 38558), (1053, 29660), (1170, 26694), (1404, 22245), (1483, 21060), (1620, 19279), (1755, 17796), (2106, 14830), (2340, 13347), (2966, 10530), (3510, 8898), (4212, 7415), (4449, 7020), (5265, 5932)]