19969875

素因数分解:

$3^3\times 5^3\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 37914240

約数和(自身を除く): 17944365

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 97, 125, 135, 183, 225, 291, 305, 375, 485, 549, 675, 873, 915, 1125, 1455, 1525, 1647, 2425, 2619, 2745, 3375, 4365, 4575, 5917, 7275, 7625, 8235, 12125, 13095, 13725, 17751, 21825, 22875, 29585, 36375, 41175, 53253, 65475, 68625, 88755, 109125, 147925, 159759, 205875, 266265, 327375, 443775, 739625, 798795, 1331325, 2218875, 3993975, 6656625, 19969875]

約数ペア:

[(1, 19969875), (3, 6656625), (5, 3993975), (9, 2218875), (15, 1331325), (25, 798795), (27, 739625), (45, 443775), (61, 327375), (75, 266265), (97, 205875), (125, 159759), (135, 147925), (183, 109125), (225, 88755), (291, 68625), (305, 65475), (375, 53253), (485, 41175), (549, 36375), (675, 29585), (873, 22875), (915, 21825), (1125, 17751), (1455, 13725), (1525, 13095), (1647, 12125), (2425, 8235), (2619, 7625), (2745, 7275), (3375, 5917), (4365, 4575)]