68403020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{313}}^1$

素因数の和:559

約数の個数: 72

約数和(自身を含む): 168384384

約数和(自身を除く): 99981364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 223, 245, 313, 446, 490, 626, 892, 980, 1115, 1252, 1561, 1565, 2191, 2230, 3122, 3130, 4382, 4460, 6244, 6260, 7805, 8764, 10927, 10955, 15337, 15610, 21854, 21910, 30674, 31220, 43708, 43820, 54635, 61348, 69799, 76685, 109270, 139598, 153370, 218540, 279196, 306740, 348995, 488593, 697990, 977186, 1395980, 1954372, 2442965, 3420151, 4885930, 6840302, 9771860, 13680604, 17100755, 34201510, 68403020]

約数ペア:

[(1, 68403020), (2, 34201510), (4, 17100755), (5, 13680604), (7, 9771860), (10, 6840302), (14, 4885930), (20, 3420151), (28, 2442965), (35, 1954372), (49, 1395980), (70, 977186), (98, 697990), (140, 488593), (196, 348995), (223, 306740), (245, 279196), (313, 218540), (446, 153370), (490, 139598), (626, 109270), (892, 76685), (980, 69799), (1115, 61348), (1252, 54635), (1561, 43820), (1565, 43708), (2191, 31220), (2230, 30674), (3122, 21910), (3130, 21854), (4382, 15610), (4460, 15337), (6244, 10955), (6260, 10927), (7805, 8764)]