145625360

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 347321520

約数和(自身を除く): 201696160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 113, 178, 181, 226, 356, 362, 445, 452, 565, 712, 724, 890, 904, 905, 1130, 1424, 1448, 1780, 1808, 1810, 2260, 2896, 3560, 3620, 4520, 7120, 7240, 9040, 10057, 14480, 16109, 20114, 20453, 32218, 40228, 40906, 50285, 64436, 80456, 80545, 81812, 100570, 102265, 128872, 160912, 161090, 163624, 201140, 204530, 257744, 322180, 327248, 402280, 409060, 644360, 804560, 818120, 1288720, 1636240, 1820317, 3640634, 7281268, 9101585, 14562536, 18203170, 29125072, 36406340, 72812680, 145625360]

約数ペア:

[(1, 145625360), (2, 72812680), (4, 36406340), (5, 29125072), (8, 18203170), (10, 14562536), (16, 9101585), (20, 7281268), (40, 3640634), (80, 1820317), (89, 1636240), (113, 1288720), (178, 818120), (181, 804560), (226, 644360), (356, 409060), (362, 402280), (445, 327248), (452, 322180), (565, 257744), (712, 204530), (724, 201140), (890, 163624), (904, 161090), (905, 160912), (1130, 128872), (1424, 102265), (1448, 100570), (1780, 81812), (1808, 80545), (1810, 80456), (2260, 64436), (2896, 50285), (3560, 40906), (3620, 40228), (4520, 32218), (7120, 20453), (7240, 20114), (9040, 16109), (10057, 14480)]