1640398516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{242519}}^1$

素因数の和:242631

約数の個数: 24

約数和(自身を含む): 3055752000

約数和(自身を除く): 1415353484

約数列:

[1, 2, 4, 19, 38, 76, 89, 178, 356, 1691, 3382, 6764, 242519, 485038, 970076, 4607861, 9215722, 18431444, 21584191, 43168382, 86336764, 410099629, 820199258, 1640398516]

約数ペア:

[(1, 1640398516), (2, 820199258), (4, 410099629), (19, 86336764), (38, 43168382), (76, 21584191), (89, 18431444), (178, 9215722), (356, 4607861), (1691, 970076), (3382, 485038), (6764, 242519)]