18658980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4507}}^1$

素因数の和:4545

約数の個数: 72

約数和(自身を含む): 59072832

約数和(自身を除く): 40413852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4507, 9014, 13521, 18028, 22535, 27042, 40563, 45070, 54084, 67605, 81126, 90140, 103661, 135210, 162252, 202815, 207322, 270420, 310983, 405630, 414644, 518305, 621966, 811260, 932949, 1036610, 1243932, 1554915, 1865898, 2073220, 3109830, 3731796, 4664745, 6219660, 9329490, 18658980]

約数ペア:

[(1, 18658980), (2, 9329490), (3, 6219660), (4, 4664745), (5, 3731796), (6, 3109830), (9, 2073220), (10, 1865898), (12, 1554915), (15, 1243932), (18, 1036610), (20, 932949), (23, 811260), (30, 621966), (36, 518305), (45, 414644), (46, 405630), (60, 310983), (69, 270420), (90, 207322), (92, 202815), (115, 162252), (138, 135210), (180, 103661), (207, 90140), (230, 81126), (276, 67605), (345, 54084), (414, 45070), (460, 40563), (690, 27042), (828, 22535), (1035, 18028), (1380, 13521), (2070, 9014), (4140, 4507)]