20498130

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 57196800

約数和(自身を除く): 36698670

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 79, 90, 93, 135, 155, 158, 186, 237, 270, 279, 310, 395, 465, 474, 558, 711, 790, 837, 930, 961, 1185, 1395, 1422, 1674, 1922, 2133, 2370, 2449, 2790, 2883, 3555, 4185, 4266, 4805, 4898, 5766, 7110, 7347, 8370, 8649, 9610, 10665, 12245, 14415, 14694, 17298, 21330, 22041, 24490, 25947, 28830, 36735, 43245, 44082, 51894, 66123, 73470, 75919, 86490, 110205, 129735, 132246, 151838, 220410, 227757, 259470, 330615, 379595, 455514, 661230, 683271, 759190, 1138785, 1366542, 2049813, 2277570, 3416355, 4099626, 6832710, 10249065, 20498130]

約数ペア:

[(1, 20498130), (2, 10249065), (3, 6832710), (5, 4099626), (6, 3416355), (9, 2277570), (10, 2049813), (15, 1366542), (18, 1138785), (27, 759190), (30, 683271), (31, 661230), (45, 455514), (54, 379595), (62, 330615), (79, 259470), (90, 227757), (93, 220410), (135, 151838), (155, 132246), (158, 129735), (186, 110205), (237, 86490), (270, 75919), (279, 73470), (310, 66123), (395, 51894), (465, 44082), (474, 43245), (558, 36735), (711, 28830), (790, 25947), (837, 24490), (930, 22041), (961, 21330), (1185, 17298), (1395, 14694), (1422, 14415), (1674, 12245), (1922, 10665), (2133, 9610), (2370, 8649), (2449, 8370), (2790, 7347), (2883, 7110), (3555, 5766), (4185, 4898), (4266, 4805)]