20045515

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 28748160

約数和(自身を除く): 8702645

約数列:

[1, 5, 7, 35, 41, 61, 205, 229, 287, 305, 427, 1145, 1435, 1603, 2135, 2501, 8015, 9389, 12505, 13969, 17507, 46945, 65723, 69845, 87535, 97783, 328615, 488915, 572729, 2863645, 4009103, 20045515]

約数ペア:

[(1, 20045515), (5, 4009103), (7, 2863645), (35, 572729), (41, 488915), (61, 328615), (205, 97783), (229, 87535), (287, 69845), (305, 65723), (427, 46945), (1145, 17507), (1435, 13969), (1603, 12505), (2135, 9389), (2501, 8015)]