72742040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1087}}^1$

素因数の和:1344

約数の個数: 64

約数和(自身を含む): 188006400

約数和(自身を除く): 115264360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 478, 956, 1087, 1195, 1673, 1912, 2174, 2390, 3346, 4348, 4780, 5435, 6692, 7609, 8365, 8696, 9560, 10870, 13384, 15218, 16730, 21740, 30436, 33460, 38045, 43480, 60872, 66920, 76090, 152180, 259793, 304360, 519586, 1039172, 1298965, 1818551, 2078344, 2597930, 3637102, 5195860, 7274204, 9092755, 10391720, 14548408, 18185510, 36371020, 72742040]

約数ペア:

[(1, 72742040), (2, 36371020), (4, 18185510), (5, 14548408), (7, 10391720), (8, 9092755), (10, 7274204), (14, 5195860), (20, 3637102), (28, 2597930), (35, 2078344), (40, 1818551), (56, 1298965), (70, 1039172), (140, 519586), (239, 304360), (280, 259793), (478, 152180), (956, 76090), (1087, 66920), (1195, 60872), (1673, 43480), (1912, 38045), (2174, 33460), (2390, 30436), (3346, 21740), (4348, 16730), (4780, 15218), (5435, 13384), (6692, 10870), (7609, 9560), (8365, 8696)]