13229840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12721}}^1$

素因数の和:12747

約数の個数: 40

約数和(自身を含む): 33128088

約数和(自身を除く): 19898248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12721, 25442, 50884, 63605, 101768, 127210, 165373, 203536, 254420, 330746, 508840, 661492, 826865, 1017680, 1322984, 1653730, 2645968, 3307460, 6614920, 13229840]

約数ペア:

[(1, 13229840), (2, 6614920), (4, 3307460), (5, 2645968), (8, 1653730), (10, 1322984), (13, 1017680), (16, 826865), (20, 661492), (26, 508840), (40, 330746), (52, 254420), (65, 203536), (80, 165373), (104, 127210), (130, 101768), (208, 63605), (260, 50884), (520, 25442), (1040, 12721)]