78512840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{6521}}^1$

素因数の和:6582

約数の個数: 64

約数和(自身を含む): 206616960

約数和(自身を除く): 128104120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 6521, 12040, 13042, 26084, 32605, 45647, 52168, 65210, 91294, 130420, 182588, 228235, 260840, 280403, 365176, 456470, 560806, 912940, 1121612, 1402015, 1825880, 1962821, 2243224, 2804030, 3925642, 5608060, 7851284, 9814105, 11216120, 15702568, 19628210, 39256420, 78512840]

約数ペア:

[(1, 78512840), (2, 39256420), (4, 19628210), (5, 15702568), (7, 11216120), (8, 9814105), (10, 7851284), (14, 5608060), (20, 3925642), (28, 2804030), (35, 2243224), (40, 1962821), (43, 1825880), (56, 1402015), (70, 1121612), (86, 912940), (140, 560806), (172, 456470), (215, 365176), (280, 280403), (301, 260840), (344, 228235), (430, 182588), (602, 130420), (860, 91294), (1204, 65210), (1505, 52168), (1720, 45647), (2408, 32605), (3010, 26084), (6020, 13042), (6521, 12040)]