71481860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{487}}^1$

素因数の和:716

約数の個数: 48

約数和(自身を含む): 154949760

約数和(自身を除く): 83467900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 179, 205, 358, 410, 487, 716, 820, 895, 974, 1790, 1948, 2435, 3580, 4870, 7339, 9740, 14678, 19967, 29356, 36695, 39934, 73390, 79868, 87173, 99835, 146780, 174346, 199670, 348692, 399340, 435865, 871730, 1743460, 3574093, 7148186, 14296372, 17870465, 35740930, 71481860]

約数ペア:

[(1, 71481860), (2, 35740930), (4, 17870465), (5, 14296372), (10, 7148186), (20, 3574093), (41, 1743460), (82, 871730), (164, 435865), (179, 399340), (205, 348692), (358, 199670), (410, 174346), (487, 146780), (716, 99835), (820, 87173), (895, 79868), (974, 73390), (1790, 39934), (1948, 36695), (2435, 29356), (3580, 19967), (4870, 14678), (7339, 9740)]