28737870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{487}}^1$

素因数の和:785

約数の個数: 64

約数和(自身を含む): 79266816

約数和(自身を除く): 50528946

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 281, 487, 562, 843, 974, 1405, 1461, 1686, 1967, 2435, 2810, 2922, 3409, 3934, 4215, 4870, 5901, 6818, 7305, 8430, 9835, 10227, 11802, 14610, 17045, 19670, 20454, 29505, 34090, 51135, 59010, 102270, 136847, 273694, 410541, 684235, 821082, 957929, 1368470, 1915858, 2052705, 2873787, 4105410, 4789645, 5747574, 9579290, 14368935, 28737870]

約数ペア:

[(1, 28737870), (2, 14368935), (3, 9579290), (5, 5747574), (6, 4789645), (7, 4105410), (10, 2873787), (14, 2052705), (15, 1915858), (21, 1368470), (30, 957929), (35, 821082), (42, 684235), (70, 410541), (105, 273694), (210, 136847), (281, 102270), (487, 59010), (562, 51135), (843, 34090), (974, 29505), (1405, 20454), (1461, 19670), (1686, 17045), (1967, 14610), (2435, 11802), (2810, 10227), (2922, 9835), (3409, 8430), (3934, 7305), (4215, 6818), (4870, 5901)]