15456740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{269}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 37353960

約数和(自身を除く): 21897220

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 269, 338, 340, 442, 538, 676, 845, 884, 1076, 1105, 1345, 1690, 2210, 2690, 2873, 3380, 3497, 4420, 4573, 5380, 5746, 6994, 9146, 11492, 13988, 14365, 17485, 18292, 22865, 28730, 34970, 45461, 45730, 57460, 59449, 69940, 90922, 91460, 118898, 181844, 227305, 237796, 297245, 454610, 594490, 772837, 909220, 1188980, 1545674, 3091348, 3864185, 7728370, 15456740]

約数ペア:

[(1, 15456740), (2, 7728370), (4, 3864185), (5, 3091348), (10, 1545674), (13, 1188980), (17, 909220), (20, 772837), (26, 594490), (34, 454610), (52, 297245), (65, 237796), (68, 227305), (85, 181844), (130, 118898), (169, 91460), (170, 90922), (221, 69940), (260, 59449), (269, 57460), (338, 45730), (340, 45461), (442, 34970), (538, 28730), (676, 22865), (845, 18292), (884, 17485), (1076, 14365), (1105, 13988), (1345, 11492), (1690, 9146), (2210, 6994), (2690, 5746), (2873, 5380), (3380, 4573), (3497, 4420)]