20445720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2543}}^1$

素因数の和:2624

約数の個数: 64

約数和(自身を含む): 62277120

約数和(自身を除く): 41831400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 67, 120, 134, 201, 268, 335, 402, 536, 670, 804, 1005, 1340, 1608, 2010, 2543, 2680, 4020, 5086, 7629, 8040, 10172, 12715, 15258, 20344, 25430, 30516, 38145, 50860, 61032, 76290, 101720, 152580, 170381, 305160, 340762, 511143, 681524, 851905, 1022286, 1363048, 1703810, 2044572, 2555715, 3407620, 4089144, 5111430, 6815240, 10222860, 20445720]

約数ペア:

[(1, 20445720), (2, 10222860), (3, 6815240), (4, 5111430), (5, 4089144), (6, 3407620), (8, 2555715), (10, 2044572), (12, 1703810), (15, 1363048), (20, 1022286), (24, 851905), (30, 681524), (40, 511143), (60, 340762), (67, 305160), (120, 170381), (134, 152580), (201, 101720), (268, 76290), (335, 61032), (402, 50860), (536, 38145), (670, 30516), (804, 25430), (1005, 20344), (1340, 15258), (1608, 12715), (2010, 10172), (2543, 8040), (2680, 7629), (4020, 5086)]