129088520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{739}}^1$

素因数の和:1158

約数の個数: 64

約数和(自身を含む): 318081600

約数和(自身を除く): 188993080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 397, 440, 739, 794, 1478, 1588, 1985, 2956, 3176, 3695, 3970, 4367, 5912, 7390, 7940, 8129, 8734, 14780, 15880, 16258, 17468, 21835, 29560, 32516, 34936, 40645, 43670, 65032, 81290, 87340, 162580, 174680, 293383, 325160, 586766, 1173532, 1466915, 2347064, 2933830, 3227213, 5867660, 6454426, 11735320, 12908852, 16136065, 25817704, 32272130, 64544260, 129088520]

約数ペア:

[(1, 129088520), (2, 64544260), (4, 32272130), (5, 25817704), (8, 16136065), (10, 12908852), (11, 11735320), (20, 6454426), (22, 5867660), (40, 3227213), (44, 2933830), (55, 2347064), (88, 1466915), (110, 1173532), (220, 586766), (397, 325160), (440, 293383), (739, 174680), (794, 162580), (1478, 87340), (1588, 81290), (1985, 65032), (2956, 43670), (3176, 40645), (3695, 34936), (3970, 32516), (4367, 29560), (5912, 21835), (7390, 17468), (7940, 16258), (8129, 15880), (8734, 14780)]