65841520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:374

約数の個数: 80

約数和(自身を含む): 159989760

約数和(自身を除く): 94148240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 139, 155, 191, 248, 278, 310, 382, 496, 556, 620, 695, 764, 955, 1112, 1240, 1390, 1528, 1910, 2224, 2480, 2780, 3056, 3820, 4309, 5560, 5921, 7640, 8618, 11120, 11842, 15280, 17236, 21545, 23684, 26549, 29605, 34472, 43090, 47368, 53098, 59210, 68944, 86180, 94736, 106196, 118420, 132745, 172360, 212392, 236840, 265490, 344720, 424784, 473680, 530980, 823019, 1061960, 1646038, 2123920, 3292076, 4115095, 6584152, 8230190, 13168304, 16460380, 32920760, 65841520]

約数ペア:

[(1, 65841520), (2, 32920760), (4, 16460380), (5, 13168304), (8, 8230190), (10, 6584152), (16, 4115095), (20, 3292076), (31, 2123920), (40, 1646038), (62, 1061960), (80, 823019), (124, 530980), (139, 473680), (155, 424784), (191, 344720), (248, 265490), (278, 236840), (310, 212392), (382, 172360), (496, 132745), (556, 118420), (620, 106196), (695, 94736), (764, 86180), (955, 68944), (1112, 59210), (1240, 53098), (1390, 47368), (1528, 43090), (1910, 34472), (2224, 29605), (2480, 26549), (2780, 23684), (3056, 21545), (3820, 17236), (4309, 15280), (5560, 11842), (5921, 11120), (7640, 8618)]