491001070

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{257}}^1\times {\mathrm{557}}^1$

素因数の和:842

約数の個数: 64

約数和(自身を含む): 1036540800

約数和(自身を除く): 545539730

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 257, 343, 490, 514, 557, 686, 1114, 1285, 1715, 1799, 2570, 2785, 3430, 3598, 3899, 5570, 7798, 8995, 12593, 17990, 19495, 25186, 27293, 38990, 54586, 62965, 88151, 125930, 136465, 143149, 176302, 191051, 272930, 286298, 382102, 440755, 715745, 881510, 955255, 1002043, 1431490, 1910510, 2004086, 5010215, 7014301, 10020430, 14028602, 35071505, 49100107, 70143010, 98200214, 245500535, 491001070]

約数ペア:

[(1, 491001070), (2, 245500535), (5, 98200214), (7, 70143010), (10, 49100107), (14, 35071505), (35, 14028602), (49, 10020430), (70, 7014301), (98, 5010215), (245, 2004086), (257, 1910510), (343, 1431490), (490, 1002043), (514, 955255), (557, 881510), (686, 715745), (1114, 440755), (1285, 382102), (1715, 286298), (1799, 272930), (2570, 191051), (2785, 176302), (3430, 143149), (3598, 136465), (3899, 125930), (5570, 88151), (7798, 62965), (8995, 54586), (12593, 38990), (17990, 27293), (19495, 25186)]