20471640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24371}}^1$

素因数の和:24392

約数の個数: 64

約数和(自身を含む): 70191360

約数和(自身を除く): 49719720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24371, 48742, 73113, 97484, 121855, 146226, 170597, 194968, 243710, 292452, 341194, 365565, 487420, 511791, 584904, 682388, 731130, 852985, 974840, 1023582, 1364776, 1462260, 1705970, 2047164, 2558955, 2924520, 3411940, 4094328, 5117910, 6823880, 10235820, 20471640]

約数ペア:

[(1, 20471640), (2, 10235820), (3, 6823880), (4, 5117910), (5, 4094328), (6, 3411940), (7, 2924520), (8, 2558955), (10, 2047164), (12, 1705970), (14, 1462260), (15, 1364776), (20, 1023582), (21, 974840), (24, 852985), (28, 731130), (30, 682388), (35, 584904), (40, 511791), (42, 487420), (56, 365565), (60, 341194), (70, 292452), (84, 243710), (105, 194968), (120, 170597), (140, 146226), (168, 121855), (210, 97484), (280, 73113), (420, 48742), (840, 24371)]