18719220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 57238272

約数和(自身を除く): 38519052

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 103, 130, 156, 195, 206, 233, 260, 309, 390, 412, 466, 515, 618, 699, 780, 932, 1030, 1165, 1236, 1339, 1398, 1545, 2060, 2330, 2678, 2796, 3029, 3090, 3495, 4017, 4660, 5356, 6058, 6180, 6695, 6990, 8034, 9087, 12116, 13390, 13980, 15145, 16068, 18174, 20085, 23999, 26780, 30290, 36348, 40170, 45435, 47998, 60580, 71997, 80340, 90870, 95996, 119995, 143994, 181740, 239990, 287988, 311987, 359985, 479980, 623974, 719970, 935961, 1247948, 1439940, 1559935, 1871922, 3119870, 3743844, 4679805, 6239740, 9359610, 18719220]

約数ペア:

[(1, 18719220), (2, 9359610), (3, 6239740), (4, 4679805), (5, 3743844), (6, 3119870), (10, 1871922), (12, 1559935), (13, 1439940), (15, 1247948), (20, 935961), (26, 719970), (30, 623974), (39, 479980), (52, 359985), (60, 311987), (65, 287988), (78, 239990), (103, 181740), (130, 143994), (156, 119995), (195, 95996), (206, 90870), (233, 80340), (260, 71997), (309, 60580), (390, 47998), (412, 45435), (466, 40170), (515, 36348), (618, 30290), (699, 26780), (780, 23999), (932, 20085), (1030, 18174), (1165, 16068), (1236, 15145), (1339, 13980), (1398, 13390), (1545, 12116), (2060, 9087), (2330, 8034), (2678, 6990), (2796, 6695), (3029, 6180), (3090, 6058), (3495, 5356), (4017, 4660)]