20145427720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2693239}}^1$

素因数の和:2693278

約数の個数: 64

約数和(自身を含む): 52356585600

約数和(自身を除く): 32211157880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 2693239, 5386478, 10772956, 13466195, 21545912, 26932390, 29625629, 45785063, 53864780, 59251258, 91570126, 107729560, 118502516, 148128145, 183140252, 228925315, 237005032, 296256290, 366280504, 457850630, 503635693, 592512580, 915701260, 1007271386, 1185025160, 1831402520, 2014542772, 2518178465, 4029085544, 5036356930, 10072713860, 20145427720]

約数ペア:

[(1, 20145427720), (2, 10072713860), (4, 5036356930), (5, 4029085544), (8, 2518178465), (10, 2014542772), (11, 1831402520), (17, 1185025160), (20, 1007271386), (22, 915701260), (34, 592512580), (40, 503635693), (44, 457850630), (55, 366280504), (68, 296256290), (85, 237005032), (88, 228925315), (110, 183140252), (136, 148128145), (170, 118502516), (187, 107729560), (220, 91570126), (340, 59251258), (374, 53864780), (440, 45785063), (680, 29625629), (748, 26932390), (935, 21545912), (1496, 13466195), (1870, 10772956), (3740, 5386478), (7480, 2693239)]