78865700

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 177072000

約数和(自身を除く): 98206300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 79, 100, 134, 149, 158, 268, 298, 316, 335, 395, 596, 670, 745, 790, 1340, 1490, 1580, 1675, 1975, 2980, 3350, 3725, 3950, 5293, 6700, 7450, 7900, 9983, 10586, 11771, 14900, 19966, 21172, 23542, 26465, 39932, 47084, 49915, 52930, 58855, 99830, 105860, 117710, 132325, 199660, 235420, 249575, 264650, 294275, 499150, 529300, 588550, 788657, 998300, 1177100, 1577314, 3154628, 3943285, 7886570, 15773140, 19716425, 39432850, 78865700]

約数ペア:

[(1, 78865700), (2, 39432850), (4, 19716425), (5, 15773140), (10, 7886570), (20, 3943285), (25, 3154628), (50, 1577314), (67, 1177100), (79, 998300), (100, 788657), (134, 588550), (149, 529300), (158, 499150), (268, 294275), (298, 264650), (316, 249575), (335, 235420), (395, 199660), (596, 132325), (670, 117710), (745, 105860), (790, 99830), (1340, 58855), (1490, 52930), (1580, 49915), (1675, 47084), (1975, 39932), (2980, 26465), (3350, 23542), (3725, 21172), (3950, 19966), (5293, 14900), (6700, 11771), (7450, 10586), (7900, 9983)]