131939480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{971}}^1$

素因数の和:1104

約数の個数: 64

約数和(自身を含む): 307929600

約数和(自身を除く): 175990120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 395, 430, 632, 790, 860, 971, 1580, 1720, 1942, 3160, 3397, 3884, 4855, 6794, 7768, 9710, 13588, 16985, 19420, 27176, 33970, 38840, 41753, 67940, 76709, 83506, 135880, 153418, 167012, 208765, 306836, 334024, 383545, 417530, 613672, 767090, 835060, 1534180, 1670120, 3068360, 3298487, 6596974, 13193948, 16492435, 26387896, 32984870, 65969740, 131939480]

約数ペア:

[(1, 131939480), (2, 65969740), (4, 32984870), (5, 26387896), (8, 16492435), (10, 13193948), (20, 6596974), (40, 3298487), (43, 3068360), (79, 1670120), (86, 1534180), (158, 835060), (172, 767090), (215, 613672), (316, 417530), (344, 383545), (395, 334024), (430, 306836), (632, 208765), (790, 167012), (860, 153418), (971, 135880), (1580, 83506), (1720, 76709), (1942, 67940), (3160, 41753), (3397, 38840), (3884, 33970), (4855, 27176), (6794, 19420), (7768, 16985), (9710, 13588)]