42640390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1097}}^1$

素因数の和:1153

約数の個数: 48

約数和(自身を含む): 86803488

約数和(自身を除く): 44163098

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 169, 230, 299, 338, 598, 845, 1097, 1495, 1690, 2194, 2990, 3887, 5485, 7774, 10970, 14261, 19435, 25231, 28522, 38870, 50462, 71305, 126155, 142610, 185393, 252310, 328003, 370786, 656006, 926965, 1640015, 1853930, 3280030, 4264039, 8528078, 21320195, 42640390]

約数ペア:

[(1, 42640390), (2, 21320195), (5, 8528078), (10, 4264039), (13, 3280030), (23, 1853930), (26, 1640015), (46, 926965), (65, 656006), (115, 370786), (130, 328003), (169, 252310), (230, 185393), (299, 142610), (338, 126155), (598, 71305), (845, 50462), (1097, 38870), (1495, 28522), (1690, 25231), (2194, 19435), (2990, 14261), (3887, 10970), (5485, 7774)]