21823750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:131

約数の個数: 80

約数和(自身を含む): 47234880

約数和(自身を除く): 25411130

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 79, 85, 125, 130, 158, 170, 221, 250, 325, 395, 425, 442, 625, 650, 790, 850, 1027, 1105, 1250, 1343, 1625, 1975, 2054, 2125, 2210, 2686, 3250, 3950, 4250, 5135, 5525, 6715, 8125, 9875, 10270, 10625, 11050, 13430, 16250, 17459, 19750, 21250, 25675, 27625, 33575, 34918, 49375, 51350, 55250, 67150, 87295, 98750, 128375, 138125, 167875, 174590, 256750, 276250, 335750, 436475, 641875, 839375, 872950, 1283750, 1678750, 2182375, 4364750, 10911875, 21823750]

約数ペア:

[(1, 21823750), (2, 10911875), (5, 4364750), (10, 2182375), (13, 1678750), (17, 1283750), (25, 872950), (26, 839375), (34, 641875), (50, 436475), (65, 335750), (79, 276250), (85, 256750), (125, 174590), (130, 167875), (158, 138125), (170, 128375), (221, 98750), (250, 87295), (325, 67150), (395, 55250), (425, 51350), (442, 49375), (625, 34918), (650, 33575), (790, 27625), (850, 25675), (1027, 21250), (1105, 19750), (1250, 17459), (1343, 16250), (1625, 13430), (1975, 11050), (2054, 10625), (2125, 10270), (2210, 9875), (2686, 8125), (3250, 6715), (3950, 5525), (4250, 5135)]