18967700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 44268000

約数和(自身を除く): 25300300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 67, 76, 95, 100, 134, 149, 190, 268, 298, 335, 380, 475, 596, 670, 745, 950, 1273, 1340, 1490, 1675, 1900, 2546, 2831, 2980, 3350, 3725, 5092, 5662, 6365, 6700, 7450, 9983, 11324, 12730, 14155, 14900, 19966, 25460, 28310, 31825, 39932, 49915, 56620, 63650, 70775, 99830, 127300, 141550, 189677, 199660, 249575, 283100, 379354, 499150, 758708, 948385, 998300, 1896770, 3793540, 4741925, 9483850, 18967700]

約数ペア:

[(1, 18967700), (2, 9483850), (4, 4741925), (5, 3793540), (10, 1896770), (19, 998300), (20, 948385), (25, 758708), (38, 499150), (50, 379354), (67, 283100), (76, 249575), (95, 199660), (100, 189677), (134, 141550), (149, 127300), (190, 99830), (268, 70775), (298, 63650), (335, 56620), (380, 49915), (475, 39932), (596, 31825), (670, 28310), (745, 25460), (950, 19966), (1273, 14900), (1340, 14155), (1490, 12730), (1675, 11324), (1900, 9983), (2546, 7450), (2831, 6700), (2980, 6365), (3350, 5662), (3725, 5092)]