72104240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 160

約数和(自身を含む): 196862400

約数和(自身を除く): 124758160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 41, 52, 65, 76, 80, 82, 89, 95, 104, 130, 152, 164, 178, 190, 205, 208, 247, 260, 304, 328, 356, 380, 410, 445, 494, 520, 533, 656, 712, 760, 779, 820, 890, 988, 1040, 1066, 1157, 1235, 1424, 1520, 1558, 1640, 1691, 1780, 1976, 2132, 2314, 2470, 2665, 3116, 3280, 3382, 3560, 3649, 3895, 3952, 4264, 4628, 4940, 5330, 5785, 6232, 6764, 7120, 7298, 7790, 8455, 8528, 9256, 9880, 10127, 10660, 11570, 12464, 13528, 14596, 15580, 16910, 18245, 18512, 19760, 20254, 21320, 21983, 23140, 27056, 29192, 31160, 33820, 36490, 40508, 42640, 43966, 46280, 47437, 50635, 58384, 62320, 67640, 69331, 72980, 81016, 87932, 92560, 94874, 101270, 109915, 135280, 138662, 145960, 162032, 175864, 189748, 202540, 219830, 237185, 277324, 291920, 346655, 351728, 379496, 405080, 439660, 474370, 554648, 693310, 758992, 810160, 879320, 901303, 948740, 1109296, 1386620, 1758640, 1802606, 1897480, 2773240, 3605212, 3794960, 4506515, 5546480, 7210424, 9013030, 14420848, 18026060, 36052120, 72104240]

約数ペア:

[(1, 72104240), (2, 36052120), (4, 18026060), (5, 14420848), (8, 9013030), (10, 7210424), (13, 5546480), (16, 4506515), (19, 3794960), (20, 3605212), (26, 2773240), (38, 1897480), (40, 1802606), (41, 1758640), (52, 1386620), (65, 1109296), (76, 948740), (80, 901303), (82, 879320), (89, 810160), (95, 758992), (104, 693310), (130, 554648), (152, 474370), (164, 439660), (178, 405080), (190, 379496), (205, 351728), (208, 346655), (247, 291920), (260, 277324), (304, 237185), (328, 219830), (356, 202540), (380, 189748), (410, 175864), (445, 162032), (494, 145960), (520, 138662), (533, 135280), (656, 109915), (712, 101270), (760, 94874), (779, 92560), (820, 87932), (890, 81016), (988, 72980), (1040, 69331), (1066, 67640), (1157, 62320), (1235, 58384), (1424, 50635), (1520, 47437), (1558, 46280), (1640, 43966), (1691, 42640), (1780, 40508), (1976, 36490), (2132, 33820), (2314, 31160), (2470, 29192), (2665, 27056), (3116, 23140), (3280, 21983), (3382, 21320), (3560, 20254), (3649, 19760), (3895, 18512), (3952, 18245), (4264, 16910), (4628, 15580), (4940, 14596), (5330, 13528), (5785, 12464), (6232, 11570), (6764, 10660), (7120, 10127), (7298, 9880), (7790, 9256), (8455, 8528)]