891928360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{2897}}^1$

素因数の和:3130

約数の個数: 64

約数和(自身を含む): 2065694400

約数和(自身を除く): 1173766040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 179, 215, 344, 358, 430, 716, 860, 895, 1432, 1720, 1790, 2897, 3580, 5794, 7160, 7697, 11588, 14485, 15394, 23176, 28970, 30788, 38485, 57940, 61576, 76970, 115880, 124571, 153940, 249142, 307880, 498284, 518563, 622855, 996568, 1037126, 1245710, 2074252, 2491420, 2592815, 4148504, 4982840, 5185630, 10371260, 20742520, 22298209, 44596418, 89192836, 111491045, 178385672, 222982090, 445964180, 891928360]

約数ペア:

[(1, 891928360), (2, 445964180), (4, 222982090), (5, 178385672), (8, 111491045), (10, 89192836), (20, 44596418), (40, 22298209), (43, 20742520), (86, 10371260), (172, 5185630), (179, 4982840), (215, 4148504), (344, 2592815), (358, 2491420), (430, 2074252), (716, 1245710), (860, 1037126), (895, 996568), (1432, 622855), (1720, 518563), (1790, 498284), (2897, 307880), (3580, 249142), (5794, 153940), (7160, 124571), (7697, 115880), (11588, 76970), (14485, 61576), (15394, 57940), (23176, 38485), (28970, 30788)]