20656770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 51701760

約数和(自身を除く): 31044990

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 67, 86, 129, 134, 201, 215, 239, 258, 335, 402, 430, 478, 645, 670, 717, 1005, 1195, 1290, 1434, 2010, 2390, 2881, 3585, 5762, 7170, 8643, 10277, 14405, 16013, 17286, 20554, 28810, 30831, 32026, 43215, 48039, 51385, 61662, 80065, 86430, 96078, 102770, 154155, 160130, 240195, 308310, 480390, 688559, 1377118, 2065677, 3442795, 4131354, 6885590, 10328385, 20656770]

約数ペア:

[(1, 20656770), (2, 10328385), (3, 6885590), (5, 4131354), (6, 3442795), (10, 2065677), (15, 1377118), (30, 688559), (43, 480390), (67, 308310), (86, 240195), (129, 160130), (134, 154155), (201, 102770), (215, 96078), (239, 86430), (258, 80065), (335, 61662), (402, 51385), (430, 48039), (478, 43215), (645, 32026), (670, 30831), (717, 28810), (1005, 20554), (1195, 17286), (1290, 16013), (1434, 14405), (2010, 10277), (2390, 8643), (2881, 7170), (3585, 5762)]