78633940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51061}}^1$

素因数の和:51088

約数の個数: 48

約数和(自身を含む): 205881984

約数和(自身を除く): 127248044

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 51061, 102122, 204244, 255305, 357427, 510610, 561671, 714854, 1021220, 1123342, 1429708, 1787135, 2246684, 2808355, 3574270, 3931697, 5616710, 7148540, 7863394, 11233420, 15726788, 19658485, 39316970, 78633940]

約数ペア:

[(1, 78633940), (2, 39316970), (4, 19658485), (5, 15726788), (7, 11233420), (10, 7863394), (11, 7148540), (14, 5616710), (20, 3931697), (22, 3574270), (28, 2808355), (35, 2246684), (44, 1787135), (55, 1429708), (70, 1123342), (77, 1021220), (110, 714854), (140, 561671), (154, 510610), (220, 357427), (308, 255305), (385, 204244), (770, 102122), (1540, 51061)]