20919840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1063}}^1$

素因数の和:1122

約数の個数: 96

約数和(自身を含む): 67568256

約数和(自身を除く): 46648416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 80, 82, 96, 120, 123, 160, 164, 205, 240, 246, 328, 410, 480, 492, 615, 656, 820, 984, 1063, 1230, 1312, 1640, 1968, 2126, 2460, 3189, 3280, 3936, 4252, 4920, 5315, 6378, 6560, 8504, 9840, 10630, 12756, 15945, 17008, 19680, 21260, 25512, 31890, 34016, 42520, 43583, 51024, 63780, 85040, 87166, 102048, 127560, 130749, 170080, 174332, 217915, 255120, 261498, 348664, 435830, 510240, 522996, 653745, 697328, 871660, 1045992, 1307490, 1394656, 1743320, 2091984, 2614980, 3486640, 4183968, 5229960, 6973280, 10459920, 20919840]

約数ペア:

[(1, 20919840), (2, 10459920), (3, 6973280), (4, 5229960), (5, 4183968), (6, 3486640), (8, 2614980), (10, 2091984), (12, 1743320), (15, 1394656), (16, 1307490), (20, 1045992), (24, 871660), (30, 697328), (32, 653745), (40, 522996), (41, 510240), (48, 435830), (60, 348664), (80, 261498), (82, 255120), (96, 217915), (120, 174332), (123, 170080), (160, 130749), (164, 127560), (205, 102048), (240, 87166), (246, 85040), (328, 63780), (410, 51024), (480, 43583), (492, 42520), (615, 34016), (656, 31890), (820, 25512), (984, 21260), (1063, 19680), (1230, 17008), (1312, 15945), (1640, 12756), (1968, 10630), (2126, 9840), (2460, 8504), (3189, 6560), (3280, 6378), (3936, 5315), (4252, 4920)]