18755220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 57972096

約数和(自身を除く): 39216876

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 157, 165, 181, 220, 314, 330, 362, 471, 543, 628, 660, 724, 785, 905, 942, 1086, 1570, 1727, 1810, 1884, 1991, 2172, 2355, 2715, 3140, 3454, 3620, 3982, 4710, 5181, 5430, 5973, 6908, 7964, 8635, 9420, 9955, 10362, 10860, 11946, 17270, 19910, 20724, 23892, 25905, 28417, 29865, 34540, 39820, 51810, 56834, 59730, 85251, 103620, 113668, 119460, 142085, 170502, 284170, 312587, 341004, 426255, 568340, 625174, 852510, 937761, 1250348, 1562935, 1705020, 1875522, 3125870, 3751044, 4688805, 6251740, 9377610, 18755220]

約数ペア:

[(1, 18755220), (2, 9377610), (3, 6251740), (4, 4688805), (5, 3751044), (6, 3125870), (10, 1875522), (11, 1705020), (12, 1562935), (15, 1250348), (20, 937761), (22, 852510), (30, 625174), (33, 568340), (44, 426255), (55, 341004), (60, 312587), (66, 284170), (110, 170502), (132, 142085), (157, 119460), (165, 113668), (181, 103620), (220, 85251), (314, 59730), (330, 56834), (362, 51810), (471, 39820), (543, 34540), (628, 29865), (660, 28417), (724, 25905), (785, 23892), (905, 20724), (942, 19910), (1086, 17270), (1570, 11946), (1727, 10860), (1810, 10362), (1884, 9955), (1991, 9420), (2172, 8635), (2355, 7964), (2715, 6908), (3140, 5973), (3454, 5430), (3620, 5181), (3982, 4710)]