2168156920

素因数分解:

$2^3\times 5^1\times {\mathrm{3251}}^1\times {\mathrm{16673}}^1$

素因数の和:19935

約数の個数: 32

約数和(自身を含む): 4880146320

約数和(自身を除く): 2711989400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3251, 6502, 13004, 16255, 16673, 26008, 32510, 33346, 65020, 66692, 83365, 130040, 133384, 166730, 333460, 666920, 54203923, 108407846, 216815692, 271019615, 433631384, 542039230, 1084078460, 2168156920]

約数ペア:

[(1, 2168156920), (2, 1084078460), (4, 542039230), (5, 433631384), (8, 271019615), (10, 216815692), (20, 108407846), (40, 54203923), (3251, 666920), (6502, 333460), (13004, 166730), (16255, 133384), (16673, 130040), (26008, 83365), (32510, 66692), (33346, 65020)]