20471430

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1373}}^1$

素因数の和:1461

約数の個数: 64

約数和(自身を含む): 56982528

約数和(自身を除く): 36511098

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 71, 105, 142, 210, 213, 355, 426, 497, 710, 994, 1065, 1373, 1491, 2130, 2485, 2746, 2982, 4119, 4970, 6865, 7455, 8238, 9611, 13730, 14910, 19222, 20595, 28833, 41190, 48055, 57666, 96110, 97483, 144165, 194966, 288330, 292449, 487415, 584898, 682381, 974830, 1364762, 1462245, 2047143, 2924490, 3411905, 4094286, 6823810, 10235715, 20471430]

約数ペア:

[(1, 20471430), (2, 10235715), (3, 6823810), (5, 4094286), (6, 3411905), (7, 2924490), (10, 2047143), (14, 1462245), (15, 1364762), (21, 974830), (30, 682381), (35, 584898), (42, 487415), (70, 292449), (71, 288330), (105, 194966), (142, 144165), (210, 97483), (213, 96110), (355, 57666), (426, 48055), (497, 41190), (710, 28833), (994, 20595), (1065, 19222), (1373, 14910), (1491, 13730), (2130, 9611), (2485, 8238), (2746, 7455), (2982, 6865), (4119, 4970)]