20133874520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{688573}}^1$

素因数の和:688644

約数の個数: 64

約数和(自身を含む): 49081554720

約数和(自身を除く): 28947680200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1462, 1720, 2924, 3655, 5848, 7310, 14620, 29240, 688573, 1377146, 2754292, 3442865, 5508584, 6885730, 11705741, 13771460, 23411482, 27542920, 29608639, 46822964, 58528705, 59217278, 93645928, 117057410, 118434556, 148043195, 234114820, 236869112, 296086390, 468229640, 503346863, 592172780, 1006693726, 1184345560, 2013387452, 2516734315, 4026774904, 5033468630, 10066937260, 20133874520]

約数ペア:

[(1, 20133874520), (2, 10066937260), (4, 5033468630), (5, 4026774904), (8, 2516734315), (10, 2013387452), (17, 1184345560), (20, 1006693726), (34, 592172780), (40, 503346863), (43, 468229640), (68, 296086390), (85, 236869112), (86, 234114820), (136, 148043195), (170, 118434556), (172, 117057410), (215, 93645928), (340, 59217278), (344, 58528705), (430, 46822964), (680, 29608639), (731, 27542920), (860, 23411482), (1462, 13771460), (1720, 11705741), (2924, 6885730), (3655, 5508584), (5848, 3442865), (7310, 2754292), (14620, 1377146), (29240, 688573)]