19541625

素因数分解:

$3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{41}}^2$

素因数の和:131

約数の個数: 48

約数和(自身を含む): 34404864

約数和(自身を除く): 14863239

約数列:

[1, 3, 5, 15, 25, 31, 41, 75, 93, 123, 125, 155, 205, 375, 465, 615, 775, 1025, 1271, 1681, 2325, 3075, 3813, 3875, 5043, 5125, 6355, 8405, 11625, 15375, 19065, 25215, 31775, 42025, 52111, 95325, 126075, 156333, 158875, 210125, 260555, 476625, 630375, 781665, 1302775, 3908325, 6513875, 19541625]

約数ペア:

[(1, 19541625), (3, 6513875), (5, 3908325), (15, 1302775), (25, 781665), (31, 630375), (41, 476625), (75, 260555), (93, 210125), (123, 158875), (125, 156333), (155, 126075), (205, 95325), (375, 52111), (465, 42025), (615, 31775), (775, 25215), (1025, 19065), (1271, 15375), (1681, 11625), (2325, 8405), (3075, 6355), (3813, 5125), (3875, 5043)]