28567500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{293}}^1$

素因数の和:333

約数の個数: 120

約数和(自身を含む): 90008688

約数和(自身を除く): 61441188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 125, 130, 150, 156, 195, 250, 260, 293, 300, 325, 375, 390, 500, 586, 625, 650, 750, 780, 879, 975, 1172, 1250, 1300, 1465, 1500, 1625, 1758, 1875, 1950, 2500, 2930, 3250, 3516, 3750, 3809, 3900, 4395, 4875, 5860, 6500, 7325, 7500, 7618, 8125, 8790, 9750, 11427, 14650, 15236, 16250, 17580, 19045, 19500, 21975, 22854, 24375, 29300, 32500, 36625, 38090, 43950, 45708, 48750, 57135, 73250, 76180, 87900, 95225, 97500, 109875, 114270, 146500, 183125, 190450, 219750, 228540, 285675, 366250, 380900, 439500, 476125, 549375, 571350, 732500, 952250, 1098750, 1142700, 1428375, 1904500, 2197500, 2380625, 2856750, 4761250, 5713500, 7141875, 9522500, 14283750, 28567500]

約数ペア:

[(1, 28567500), (2, 14283750), (3, 9522500), (4, 7141875), (5, 5713500), (6, 4761250), (10, 2856750), (12, 2380625), (13, 2197500), (15, 1904500), (20, 1428375), (25, 1142700), (26, 1098750), (30, 952250), (39, 732500), (50, 571350), (52, 549375), (60, 476125), (65, 439500), (75, 380900), (78, 366250), (100, 285675), (125, 228540), (130, 219750), (150, 190450), (156, 183125), (195, 146500), (250, 114270), (260, 109875), (293, 97500), (300, 95225), (325, 87900), (375, 76180), (390, 73250), (500, 57135), (586, 48750), (625, 45708), (650, 43950), (750, 38090), (780, 36625), (879, 32500), (975, 29300), (1172, 24375), (1250, 22854), (1300, 21975), (1465, 19500), (1500, 19045), (1625, 17580), (1758, 16250), (1875, 15236), (1950, 14650), (2500, 11427), (2930, 9750), (3250, 8790), (3516, 8125), (3750, 7618), (3809, 7500), (3900, 7325), (4395, 6500), (4875, 5860)]