18743320

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{757}}^1$

素因数の和:1387

約数の個数: 32

約数和(自身を含む): 42296400

約数和(自身を除く): 23553080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 757, 1238, 1514, 2476, 3028, 3095, 3785, 4952, 6056, 6190, 7570, 12380, 15140, 24760, 30280, 468583, 937166, 1874332, 2342915, 3748664, 4685830, 9371660, 18743320]

約数ペア:

[(1, 18743320), (2, 9371660), (4, 4685830), (5, 3748664), (8, 2342915), (10, 1874332), (20, 937166), (40, 468583), (619, 30280), (757, 24760), (1238, 15140), (1514, 12380), (2476, 7570), (3028, 6190), (3095, 6056), (3785, 4952)]