220453940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{7757}}^1$

素因数の和:7809

約数の個数: 72

約数和(自身を含む): 557179560

約数和(自身を除く): 336725620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2842, 4060, 5684, 7105, 7757, 14210, 15514, 28420, 31028, 38785, 54299, 77570, 108598, 155140, 217196, 224953, 271495, 380093, 449906, 542990, 760186, 899812, 1085980, 1124765, 1520372, 1574671, 1900465, 2249530, 3149342, 3800930, 4499060, 6298684, 7601860, 7873355, 11022697, 15746710, 22045394, 31493420, 44090788, 55113485, 110226970, 220453940]

約数ペア:

[(1, 220453940), (2, 110226970), (4, 55113485), (5, 44090788), (7, 31493420), (10, 22045394), (14, 15746710), (20, 11022697), (28, 7873355), (29, 7601860), (35, 6298684), (49, 4499060), (58, 3800930), (70, 3149342), (98, 2249530), (116, 1900465), (140, 1574671), (145, 1520372), (196, 1124765), (203, 1085980), (245, 899812), (290, 760186), (406, 542990), (490, 449906), (580, 380093), (812, 271495), (980, 224953), (1015, 217196), (1421, 155140), (2030, 108598), (2842, 77570), (4060, 54299), (5684, 38785), (7105, 31028), (7757, 28420), (14210, 15514)]