74278125

素因数分解:

$3^2\times 5^5\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 142178400

約数和(自身を除く): 67900275

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 125, 139, 171, 225, 285, 375, 417, 475, 625, 695, 855, 1125, 1251, 1425, 1875, 2085, 2375, 2641, 3125, 3475, 4275, 5625, 6255, 7125, 7923, 9375, 10425, 11875, 13205, 17375, 21375, 23769, 28125, 31275, 35625, 39615, 52125, 59375, 66025, 86875, 106875, 118845, 156375, 178125, 198075, 260625, 330125, 434375, 534375, 594225, 781875, 990375, 1303125, 1650625, 2971125, 3909375, 4951875, 8253125, 14855625, 24759375, 74278125]

約数ペア:

[(1, 74278125), (3, 24759375), (5, 14855625), (9, 8253125), (15, 4951875), (19, 3909375), (25, 2971125), (45, 1650625), (57, 1303125), (75, 990375), (95, 781875), (125, 594225), (139, 534375), (171, 434375), (225, 330125), (285, 260625), (375, 198075), (417, 178125), (475, 156375), (625, 118845), (695, 106875), (855, 86875), (1125, 66025), (1251, 59375), (1425, 52125), (1875, 39615), (2085, 35625), (2375, 31275), (2641, 28125), (3125, 23769), (3475, 21375), (4275, 17375), (5625, 13205), (6255, 11875), (7125, 10425), (7923, 9375)]