18242140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{569}}^1$

素因数の和:814

約数の個数: 48

約数和(自身を含む): 44049600

約数和(自身を除く): 25807460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 458, 569, 916, 1138, 1145, 1603, 2276, 2290, 2845, 3206, 3983, 4580, 5690, 6412, 7966, 8015, 11380, 15932, 16030, 19915, 32060, 39830, 79660, 130301, 260602, 521204, 651505, 912107, 1303010, 1824214, 2606020, 3648428, 4560535, 9121070, 18242140]

約数ペア:

[(1, 18242140), (2, 9121070), (4, 4560535), (5, 3648428), (7, 2606020), (10, 1824214), (14, 1303010), (20, 912107), (28, 651505), (35, 521204), (70, 260602), (140, 130301), (229, 79660), (458, 39830), (569, 32060), (916, 19915), (1138, 16030), (1145, 15932), (1603, 11380), (2276, 8015), (2290, 7966), (2845, 6412), (3206, 5690), (3983, 4580)]