25981030

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 26024858

約数列:

[1, 2, 5, 10, 23, 37, 43, 46, 71, 74, 86, 115, 142, 185, 215, 230, 355, 370, 430, 710, 851, 989, 1591, 1633, 1702, 1978, 2627, 3053, 3182, 3266, 4255, 4945, 5254, 6106, 7955, 8165, 8510, 9890, 13135, 15265, 15910, 16330, 26270, 30530, 36593, 60421, 70219, 73186, 112961, 120842, 140438, 182965, 225922, 302105, 351095, 365930, 564805, 604210, 702190, 1129610, 2598103, 5196206, 12990515, 25981030]

約数ペア:

[(1, 25981030), (2, 12990515), (5, 5196206), (10, 2598103), (23, 1129610), (37, 702190), (43, 604210), (46, 564805), (71, 365930), (74, 351095), (86, 302105), (115, 225922), (142, 182965), (185, 140438), (215, 120842), (230, 112961), (355, 73186), (370, 70219), (430, 60421), (710, 36593), (851, 30530), (989, 26270), (1591, 16330), (1633, 15910), (1702, 15265), (1978, 13135), (2627, 9890), (3053, 8510), (3182, 8165), (3266, 7955), (4255, 6106), (4945, 5254)]