205462920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131707}}^1$

素因数の和:131734

約数の個数: 64

約数和(自身を含む): 663808320

約数和(自身を除く): 458345400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 131707, 263414, 395121, 526828, 658535, 790242, 1053656, 1317070, 1580484, 1712191, 1975605, 2634140, 3160968, 3424382, 3951210, 5136573, 5268280, 6848764, 7902420, 8560955, 10273146, 13697528, 15804840, 17121910, 20546292, 25682865, 34243820, 41092584, 51365730, 68487640, 102731460, 205462920]

約数ペア:

[(1, 205462920), (2, 102731460), (3, 68487640), (4, 51365730), (5, 41092584), (6, 34243820), (8, 25682865), (10, 20546292), (12, 17121910), (13, 15804840), (15, 13697528), (20, 10273146), (24, 8560955), (26, 7902420), (30, 6848764), (39, 5268280), (40, 5136573), (52, 3951210), (60, 3424382), (65, 3160968), (78, 2634140), (104, 1975605), (120, 1712191), (130, 1580484), (156, 1317070), (195, 1053656), (260, 790242), (312, 658535), (390, 526828), (520, 395121), (780, 263414), (1560, 131707)]