64279880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1327}}^1$

素因数の和:1518

約数の個数: 64

約数和(自身を含む): 166371840

約数和(自身を除く): 102091960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 173, 280, 346, 692, 865, 1211, 1327, 1384, 1730, 2422, 2654, 3460, 4844, 5308, 6055, 6635, 6920, 9289, 9688, 10616, 12110, 13270, 18578, 24220, 26540, 37156, 46445, 48440, 53080, 74312, 92890, 185780, 229571, 371560, 459142, 918284, 1147855, 1606997, 1836568, 2295710, 3213994, 4591420, 6427988, 8034985, 9182840, 12855976, 16069970, 32139940, 64279880]

約数ペア:

[(1, 64279880), (2, 32139940), (4, 16069970), (5, 12855976), (7, 9182840), (8, 8034985), (10, 6427988), (14, 4591420), (20, 3213994), (28, 2295710), (35, 1836568), (40, 1606997), (56, 1147855), (70, 918284), (140, 459142), (173, 371560), (280, 229571), (346, 185780), (692, 92890), (865, 74312), (1211, 53080), (1327, 48440), (1384, 46445), (1730, 37156), (2422, 26540), (2654, 24220), (3460, 18578), (4844, 13270), (5308, 12110), (6055, 10616), (6635, 9688), (6920, 9289)]