31956680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1871}}^1$

素因数の和:1950

約数の個数: 64

約数和(自身を含む): 83566080

約数和(自身を除く): 51609400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 1871, 2135, 2440, 3416, 3742, 4270, 7484, 8540, 9355, 13097, 14968, 17080, 18710, 26194, 37420, 52388, 65485, 74840, 104776, 114131, 130970, 228262, 261940, 456524, 523880, 570655, 798917, 913048, 1141310, 1597834, 2282620, 3195668, 3994585, 4565240, 6391336, 7989170, 15978340, 31956680]

約数ペア:

[(1, 31956680), (2, 15978340), (4, 7989170), (5, 6391336), (7, 4565240), (8, 3994585), (10, 3195668), (14, 2282620), (20, 1597834), (28, 1141310), (35, 913048), (40, 798917), (56, 570655), (61, 523880), (70, 456524), (122, 261940), (140, 228262), (244, 130970), (280, 114131), (305, 104776), (427, 74840), (488, 65485), (610, 52388), (854, 37420), (1220, 26194), (1708, 18710), (1871, 17080), (2135, 14968), (2440, 13097), (3416, 9355), (3742, 8540), (4270, 7484)]