77984838

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:657

約数の個数: 48

約数和(自身を含む): 172972800

約数和(自身を除く): 94987962

約数列:

[1, 2, 3, 6, 9, 18, 71, 139, 142, 213, 278, 417, 426, 439, 639, 834, 878, 1251, 1278, 1317, 2502, 2634, 3951, 7902, 9869, 19738, 29607, 31169, 59214, 61021, 62338, 88821, 93507, 122042, 177642, 183063, 187014, 280521, 366126, 549189, 561042, 1098378, 4332491, 8664982, 12997473, 25994946, 38992419, 77984838]

約数ペア:

[(1, 77984838), (2, 38992419), (3, 25994946), (6, 12997473), (9, 8664982), (18, 4332491), (71, 1098378), (139, 561042), (142, 549189), (213, 366126), (278, 280521), (417, 187014), (426, 183063), (439, 177642), (639, 122042), (834, 93507), (878, 88821), (1251, 62338), (1278, 61021), (1317, 59214), (2502, 31169), (2634, 29607), (3951, 19738), (7902, 9869)]