398049340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{977}}^1\times {\mathrm{1567}}^1$

素因数の和:2566

約数の個数: 48

約数和(自身を含む): 901700352

約数和(自身を除く): 503651012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 977, 1567, 1954, 3134, 3908, 4885, 6268, 7835, 9770, 12701, 15670, 19540, 20371, 25402, 31340, 40742, 50804, 63505, 81484, 101855, 127010, 203710, 254020, 407420, 1530959, 3061918, 6123836, 7654795, 15309590, 19902467, 30619180, 39804934, 79609868, 99512335, 199024670, 398049340]

約数ペア:

[(1, 398049340), (2, 199024670), (4, 99512335), (5, 79609868), (10, 39804934), (13, 30619180), (20, 19902467), (26, 15309590), (52, 7654795), (65, 6123836), (130, 3061918), (260, 1530959), (977, 407420), (1567, 254020), (1954, 203710), (3134, 127010), (3908, 101855), (4885, 81484), (6268, 63505), (7835, 50804), (9770, 40742), (12701, 31340), (15670, 25402), (19540, 20371)]