90447760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{86969}}^1$

素因数の和:86995

約数の個数: 40

約数和(自身を含む): 226469880

約数和(自身を除く): 136022120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 86969, 173938, 347876, 434845, 695752, 869690, 1130597, 1391504, 1739380, 2261194, 3478760, 4522388, 5652985, 6957520, 9044776, 11305970, 18089552, 22611940, 45223880, 90447760]

約数ペア:

[(1, 90447760), (2, 45223880), (4, 22611940), (5, 18089552), (8, 11305970), (10, 9044776), (13, 6957520), (16, 5652985), (20, 4522388), (26, 3478760), (40, 2261194), (52, 1739380), (65, 1391504), (80, 1130597), (104, 869690), (130, 695752), (208, 434845), (260, 347876), (520, 173938), (1040, 86969)]