18910620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3389}}^1$

素因数の和:3435

約数の個数: 72

約数和(自身を含む): 59230080

約数和(自身を除く): 40319460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3389, 5580, 6778, 10167, 13556, 16945, 20334, 30501, 33890, 40668, 50835, 61002, 67780, 101670, 105059, 122004, 152505, 203340, 210118, 305010, 315177, 420236, 525295, 610020, 630354, 945531, 1050590, 1260708, 1575885, 1891062, 2101180, 3151770, 3782124, 4727655, 6303540, 9455310, 18910620]

約数ペア:

[(1, 18910620), (2, 9455310), (3, 6303540), (4, 4727655), (5, 3782124), (6, 3151770), (9, 2101180), (10, 1891062), (12, 1575885), (15, 1260708), (18, 1050590), (20, 945531), (30, 630354), (31, 610020), (36, 525295), (45, 420236), (60, 315177), (62, 305010), (90, 210118), (93, 203340), (124, 152505), (155, 122004), (180, 105059), (186, 101670), (279, 67780), (310, 61002), (372, 50835), (465, 40668), (558, 33890), (620, 30501), (930, 20334), (1116, 16945), (1395, 13556), (1860, 10167), (2790, 6778), (3389, 5580)]