19484760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{409}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 58744800

約数和(自身を除く): 39260040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 397, 409, 794, 818, 1191, 1227, 1588, 1636, 1985, 2045, 2382, 2454, 3176, 3272, 3970, 4090, 4764, 4908, 5955, 6135, 7940, 8180, 9528, 9816, 11910, 12270, 15880, 16360, 23820, 24540, 47640, 49080, 162373, 324746, 487119, 649492, 811865, 974238, 1298984, 1623730, 1948476, 2435595, 3247460, 3896952, 4871190, 6494920, 9742380, 19484760]

約数ペア:

[(1, 19484760), (2, 9742380), (3, 6494920), (4, 4871190), (5, 3896952), (6, 3247460), (8, 2435595), (10, 1948476), (12, 1623730), (15, 1298984), (20, 974238), (24, 811865), (30, 649492), (40, 487119), (60, 324746), (120, 162373), (397, 49080), (409, 47640), (794, 24540), (818, 23820), (1191, 16360), (1227, 15880), (1588, 12270), (1636, 11910), (1985, 9816), (2045, 9528), (2382, 8180), (2454, 7940), (3176, 6135), (3272, 5955), (3970, 4908), (4090, 4764)]