20818020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8069}}^1$

素因数の和:8124

約数の個数: 48

約数和(自身を含む): 59653440

約数和(自身を除く): 38835420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8069, 16138, 24207, 32276, 40345, 48414, 80690, 96828, 121035, 161380, 242070, 346967, 484140, 693934, 1040901, 1387868, 1734835, 2081802, 3469670, 4163604, 5204505, 6939340, 10409010, 20818020]

約数ペア:

[(1, 20818020), (2, 10409010), (3, 6939340), (4, 5204505), (5, 4163604), (6, 3469670), (10, 2081802), (12, 1734835), (15, 1387868), (20, 1040901), (30, 693934), (43, 484140), (60, 346967), (86, 242070), (129, 161380), (172, 121035), (215, 96828), (258, 80690), (430, 48414), (516, 40345), (645, 32276), (860, 24207), (1290, 16138), (2580, 8069)]