201451640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12497}}^1$

素因数の和:12552

約数の個数: 64

約数和(自身を含む): 503919360

約数和(自身を除く): 302467720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 12497, 16120, 24994, 49988, 62485, 99976, 124970, 162461, 249940, 324922, 387407, 499880, 649844, 774814, 812305, 1299688, 1549628, 1624610, 1937035, 3099256, 3249220, 3874070, 5036291, 6498440, 7748140, 10072582, 15496280, 20145164, 25181455, 40290328, 50362910, 100725820, 201451640]

約数ペア:

[(1, 201451640), (2, 100725820), (4, 50362910), (5, 40290328), (8, 25181455), (10, 20145164), (13, 15496280), (20, 10072582), (26, 7748140), (31, 6498440), (40, 5036291), (52, 3874070), (62, 3249220), (65, 3099256), (104, 1937035), (124, 1624610), (130, 1549628), (155, 1299688), (248, 812305), (260, 774814), (310, 649844), (403, 499880), (520, 387407), (620, 324922), (806, 249940), (1240, 162461), (1612, 124970), (2015, 99976), (3224, 62485), (4030, 49988), (8060, 24994), (12497, 16120)]