20444912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{617}}^1$

素因数の和:753

約数の個数: 40

約数和(自身を含む): 42147600

約数和(自身を除く): 21702688

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 109, 152, 218, 304, 436, 617, 872, 1234, 1744, 2071, 2468, 4142, 4936, 8284, 9872, 11723, 16568, 23446, 33136, 46892, 67253, 93784, 134506, 187568, 269012, 538024, 1076048, 1277807, 2555614, 5111228, 10222456, 20444912]

約数ペア:

[(1, 20444912), (2, 10222456), (4, 5111228), (8, 2555614), (16, 1277807), (19, 1076048), (38, 538024), (76, 269012), (109, 187568), (152, 134506), (218, 93784), (304, 67253), (436, 46892), (617, 33136), (872, 23446), (1234, 16568), (1744, 11723), (2071, 9872), (2468, 8284), (4142, 4936)]