18999150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{5507}}^1$

素因数の和:5545

約数の個数: 48

約数和(自身を含む): 49175424

約数和(自身を除く): 30176274

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 138, 150, 230, 345, 575, 690, 1150, 1725, 3450, 5507, 11014, 16521, 27535, 33042, 55070, 82605, 126661, 137675, 165210, 253322, 275350, 379983, 413025, 633305, 759966, 826050, 1266610, 1899915, 3166525, 3799830, 6333050, 9499575, 18999150]

約数ペア:

[(1, 18999150), (2, 9499575), (3, 6333050), (5, 3799830), (6, 3166525), (10, 1899915), (15, 1266610), (23, 826050), (25, 759966), (30, 633305), (46, 413025), (50, 379983), (69, 275350), (75, 253322), (115, 165210), (138, 137675), (150, 126661), (230, 82605), (345, 55070), (575, 33042), (690, 27535), (1150, 16521), (1725, 11014), (3450, 5507)]