29781375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 55036800

約数和(自身を除く): 25255425

約数列:

[1, 3, 5, 13, 15, 25, 39, 41, 65, 75, 123, 125, 149, 195, 205, 325, 375, 447, 533, 615, 745, 975, 1025, 1599, 1625, 1937, 2235, 2665, 3075, 3725, 4875, 5125, 5811, 6109, 7995, 9685, 11175, 13325, 15375, 18327, 18625, 29055, 30545, 39975, 48425, 55875, 66625, 79417, 91635, 145275, 152725, 199875, 238251, 242125, 397085, 458175, 726375, 763625, 1191255, 1985425, 2290875, 5956275, 9927125, 29781375]

約数ペア:

[(1, 29781375), (3, 9927125), (5, 5956275), (13, 2290875), (15, 1985425), (25, 1191255), (39, 763625), (41, 726375), (65, 458175), (75, 397085), (123, 242125), (125, 238251), (149, 199875), (195, 152725), (205, 145275), (325, 91635), (375, 79417), (447, 66625), (533, 55875), (615, 48425), (745, 39975), (975, 30545), (1025, 29055), (1599, 18625), (1625, 18327), (1937, 15375), (2235, 13325), (2665, 11175), (3075, 9685), (3725, 7995), (4875, 6109), (5125, 5811)]