20902049360

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3147899}}^1$

素因数の和:3147995

約数の個数: 40

約数和(自身を含む): 49182789600

約数和(自身を除く): 28280740240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 3147899, 6295798, 12591596, 15739495, 25183192, 31478990, 50366384, 62957980, 125915960, 251831920, 261275617, 522551234, 1045102468, 1306378085, 2090204936, 2612756170, 4180409872, 5225512340, 10451024680, 20902049360]

約数ペア:

[(1, 20902049360), (2, 10451024680), (4, 5225512340), (5, 4180409872), (8, 2612756170), (10, 2090204936), (16, 1306378085), (20, 1045102468), (40, 522551234), (80, 261275617), (83, 251831920), (166, 125915960), (332, 62957980), (415, 50366384), (664, 31478990), (830, 25183192), (1328, 15739495), (1660, 12591596), (3320, 6295798), (6640, 3147899)]