680955860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{15683}}^1$

素因数の和:15872

約数の個数: 48

約数和(自身を含む): 1549328256

約数和(自身を除く): 868372396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 167, 260, 334, 668, 835, 1670, 2171, 3340, 4342, 8684, 10855, 15683, 21710, 31366, 43420, 62732, 78415, 156830, 203879, 313660, 407758, 815516, 1019395, 2038790, 2619061, 4077580, 5238122, 10476244, 13095305, 26190610, 34047793, 52381220, 68095586, 136191172, 170238965, 340477930, 680955860]

約数ペア:

[(1, 680955860), (2, 340477930), (4, 170238965), (5, 136191172), (10, 68095586), (13, 52381220), (20, 34047793), (26, 26190610), (52, 13095305), (65, 10476244), (130, 5238122), (167, 4077580), (260, 2619061), (334, 2038790), (668, 1019395), (835, 815516), (1670, 407758), (2171, 313660), (3340, 203879), (4342, 156830), (8684, 78415), (10855, 62732), (15683, 43420), (21710, 31366)]