818790

素因数分解:

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

素因数の和:581

約数の個数: 48

約数和(自身を含む): 2290032

約数和(自身を除く): 1471242

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 557, 735, 1114, 1470, 1671, 2785, 3342, 3899, 5570, 7798, 8355, 11697, 16710, 19495, 23394, 27293, 38990, 54586, 58485, 81879, 116970, 136465, 163758, 272930, 409395, 818790]

約数ペア:

[(1, 818790), (2, 409395), (3, 272930), (5, 163758), (6, 136465), (7, 116970), (10, 81879), (14, 58485), (15, 54586), (21, 38990), (30, 27293), (35, 23394), (42, 19495), (49, 16710), (70, 11697), (98, 8355), (105, 7798), (147, 5570), (210, 3899), (245, 3342), (294, 2785), (490, 1671), (557, 1470), (735, 1114)]