289692520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17971}}^1$

素因数の和:18026

約数の個数: 64

約数和(自身を含む): 724631040

約数和(自身を除く): 434938520

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, 16120, 17971, 35942, 71884, 89855, 143768, 179710, 233623, 359420, 467246, 557101, 718840, 934492, 1114202, 1168115, 1868984, 2228404, 2336230, 2785505, 4456808, 4672460, 5571010, 7242313, 9344920, 11142020, 14484626, 22284040, 28969252, 36211565, 57938504, 72423130, 144846260, 289692520]

約数ペア:

[(1, 289692520), (2, 144846260), (4, 72423130), (5, 57938504), (8, 36211565), (10, 28969252), (13, 22284040), (20, 14484626), (26, 11142020), (31, 9344920), (40, 7242313), (52, 5571010), (62, 4672460), (65, 4456808), (104, 2785505), (124, 2336230), (130, 2228404), (155, 1868984), (248, 1168115), (260, 1114202), (310, 934492), (403, 718840), (520, 557101), (620, 467246), (806, 359420), (1240, 233623), (1612, 179710), (2015, 143768), (3224, 89855), (4030, 71884), (8060, 35942), (16120, 17971)]