27408520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 64281600

約数和(自身を除く): 36873080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 61, 94, 122, 188, 235, 239, 244, 305, 376, 470, 478, 488, 610, 940, 956, 1195, 1220, 1880, 1912, 2390, 2440, 2867, 4780, 5734, 9560, 11233, 11468, 14335, 14579, 22466, 22936, 28670, 29158, 44932, 56165, 57340, 58316, 72895, 89864, 112330, 114680, 116632, 145790, 224660, 291580, 449320, 583160, 685213, 1370426, 2740852, 3426065, 5481704, 6852130, 13704260, 27408520]

約数ペア:

[(1, 27408520), (2, 13704260), (4, 6852130), (5, 5481704), (8, 3426065), (10, 2740852), (20, 1370426), (40, 685213), (47, 583160), (61, 449320), (94, 291580), (122, 224660), (188, 145790), (235, 116632), (239, 114680), (244, 112330), (305, 89864), (376, 72895), (470, 58316), (478, 57340), (488, 56165), (610, 44932), (940, 29158), (956, 28670), (1195, 22936), (1220, 22466), (1880, 14579), (1912, 14335), (2390, 11468), (2440, 11233), (2867, 9560), (4780, 5734)]