145248640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7321}}^1$

素因数の和:7371

約数の個数: 64

約数和(自身を含む): 358485120

約数和(自身を除く): 213236480

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, 3968, 4960, 7321, 9920, 14642, 19840, 29284, 36605, 58568, 73210, 117136, 146420, 226951, 234272, 292840, 453902, 468544, 585680, 907804, 937088, 1134755, 1171360, 1815608, 2269510, 2342720, 3631216, 4539020, 4685440, 7262432, 9078040, 14524864, 18156080, 29049728, 36312160, 72624320, 145248640]

約数ペア:

[(1, 145248640), (2, 72624320), (4, 36312160), (5, 29049728), (8, 18156080), (10, 14524864), (16, 9078040), (20, 7262432), (31, 4685440), (32, 4539020), (40, 3631216), (62, 2342720), (64, 2269510), (80, 1815608), (124, 1171360), (128, 1134755), (155, 937088), (160, 907804), (248, 585680), (310, 468544), (320, 453902), (496, 292840), (620, 234272), (640, 226951), (992, 146420), (1240, 117136), (1984, 73210), (2480, 58568), (3968, 36605), (4960, 29284), (7321, 19840), (9920, 14642)]