18648540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{331}}^1$

素因数の和:659

約数の個数: 72

約数和(自身を含む): 56919408

約数和(自身を除く): 38270868

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 313, 331, 626, 662, 939, 993, 1252, 1324, 1565, 1655, 1878, 1986, 2817, 2979, 3130, 3310, 3756, 3972, 4695, 4965, 5634, 5958, 6260, 6620, 9390, 9930, 11268, 11916, 14085, 14895, 18780, 19860, 28170, 29790, 56340, 59580, 103603, 207206, 310809, 414412, 518015, 621618, 932427, 1036030, 1243236, 1554045, 1864854, 2072060, 3108090, 3729708, 4662135, 6216180, 9324270, 18648540]

約数ペア:

[(1, 18648540), (2, 9324270), (3, 6216180), (4, 4662135), (5, 3729708), (6, 3108090), (9, 2072060), (10, 1864854), (12, 1554045), (15, 1243236), (18, 1036030), (20, 932427), (30, 621618), (36, 518015), (45, 414412), (60, 310809), (90, 207206), (180, 103603), (313, 59580), (331, 56340), (626, 29790), (662, 28170), (939, 19860), (993, 18780), (1252, 14895), (1324, 14085), (1565, 11916), (1655, 11268), (1878, 9930), (1986, 9390), (2817, 6620), (2979, 6260), (3130, 5958), (3310, 5634), (3756, 4965), (3972, 4695)]