78308480

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3947}}^1$

素因数の和:3997

約数の個数: 64

約数和(自身を含む): 193294080

約数和(自身を除く): 114985600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3947, 3968, 4960, 7894, 9920, 15788, 19735, 19840, 31576, 39470, 63152, 78940, 122357, 126304, 157880, 244714, 252608, 315760, 489428, 505216, 611785, 631520, 978856, 1223570, 1263040, 1957712, 2447140, 2526080, 3915424, 4894280, 7830848, 9788560, 15661696, 19577120, 39154240, 78308480]

約数ペア:

[(1, 78308480), (2, 39154240), (4, 19577120), (5, 15661696), (8, 9788560), (10, 7830848), (16, 4894280), (20, 3915424), (31, 2526080), (32, 2447140), (40, 1957712), (62, 1263040), (64, 1223570), (80, 978856), (124, 631520), (128, 611785), (155, 505216), (160, 489428), (248, 315760), (310, 252608), (320, 244714), (496, 157880), (620, 126304), (640, 122357), (992, 78940), (1240, 63152), (1984, 39470), (2480, 31576), (3947, 19840), (3968, 19735), (4960, 15788), (7894, 9920)]