247994420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{7547}}^1$

素因数の和:7640

約数の個数: 48

約数和(自身を含む): 547803648

約数和(自身を除く): 299809228

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 1060, 1643, 3286, 6572, 7547, 8215, 15094, 16430, 30188, 32860, 37735, 75470, 150940, 233957, 399991, 467914, 799982, 935828, 1169785, 1599964, 1999955, 2339570, 3999910, 4679140, 7999820, 12399721, 24799442, 49598884, 61998605, 123997210, 247994420]

約数ペア:

[(1, 247994420), (2, 123997210), (4, 61998605), (5, 49598884), (10, 24799442), (20, 12399721), (31, 7999820), (53, 4679140), (62, 3999910), (106, 2339570), (124, 1999955), (155, 1599964), (212, 1169785), (265, 935828), (310, 799982), (530, 467914), (620, 399991), (1060, 233957), (1643, 150940), (3286, 75470), (6572, 37735), (7547, 32860), (8215, 30188), (15094, 16430)]