20357070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 51577344

約数和(自身を除く): 31220274

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 163, 181, 230, 326, 345, 362, 489, 543, 690, 815, 905, 978, 1086, 1630, 1810, 2445, 2715, 3749, 4163, 4890, 5430, 7498, 8326, 11247, 12489, 18745, 20815, 22494, 24978, 29503, 37490, 41630, 56235, 59006, 62445, 88509, 112470, 124890, 147515, 177018, 295030, 442545, 678569, 885090, 1357138, 2035707, 3392845, 4071414, 6785690, 10178535, 20357070]

約数ペア:

[(1, 20357070), (2, 10178535), (3, 6785690), (5, 4071414), (6, 3392845), (10, 2035707), (15, 1357138), (23, 885090), (30, 678569), (46, 442545), (69, 295030), (115, 177018), (138, 147515), (163, 124890), (181, 112470), (230, 88509), (326, 62445), (345, 59006), (362, 56235), (489, 41630), (543, 37490), (690, 29503), (815, 24978), (905, 22494), (978, 20815), (1086, 18745), (1630, 12489), (1810, 11247), (2445, 8326), (2715, 7498), (3749, 5430), (4163, 4890)]