220698920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13691}}^1$

素因数の和:13746

約数の個数: 64

約数和(自身を含む): 552061440

約数和(自身を除く): 331362520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 13691, 16120, 27382, 54764, 68455, 109528, 136910, 177983, 273820, 355966, 424421, 547640, 711932, 848842, 889915, 1423864, 1697684, 1779830, 2122105, 3395368, 3559660, 4244210, 5517473, 7119320, 8488420, 11034946, 16976840, 22069892, 27587365, 44139784, 55174730, 110349460, 220698920]

約数ペア:

[(1, 220698920), (2, 110349460), (4, 55174730), (5, 44139784), (8, 27587365), (10, 22069892), (13, 16976840), (20, 11034946), (26, 8488420), (31, 7119320), (40, 5517473), (52, 4244210), (62, 3559660), (65, 3395368), (104, 2122105), (124, 1779830), (130, 1697684), (155, 1423864), (248, 889915), (260, 848842), (310, 711932), (403, 547640), (520, 424421), (620, 355966), (806, 273820), (1240, 177983), (1612, 136910), (2015, 109528), (3224, 68455), (4030, 54764), (8060, 27382), (13691, 16120)]