15225780020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{777619}}^1$

素因数の和:777728

約数の個数: 48

約数和(自身を含む): 35272843200

約数和(自身を除く): 20047063180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 777619, 1555238, 3110476, 3888095, 7776190, 8553809, 15552380, 17107618, 34215236, 42769045, 69208091, 85538090, 138416182, 171076180, 276832364, 346040455, 692080910, 761289001, 1384161820, 1522578002, 3045156004, 3806445005, 7612890010, 15225780020]

約数ペア:

[(1, 15225780020), (2, 7612890010), (4, 3806445005), (5, 3045156004), (10, 1522578002), (11, 1384161820), (20, 761289001), (22, 692080910), (44, 346040455), (55, 276832364), (89, 171076180), (110, 138416182), (178, 85538090), (220, 69208091), (356, 42769045), (445, 34215236), (890, 17107618), (979, 15552380), (1780, 8553809), (1958, 7776190), (3916, 3888095), (4895, 3110476), (9790, 1555238), (19580, 777619)]