28249100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:507

約数の個数: 72

約数和(自身を含む): 68131056

約数和(自身を除く): 39881956

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 61, 100, 110, 122, 220, 244, 275, 305, 421, 550, 610, 671, 842, 1100, 1220, 1342, 1525, 1684, 2105, 2684, 3050, 3355, 4210, 4631, 6100, 6710, 8420, 9262, 10525, 13420, 16775, 18524, 21050, 23155, 25681, 33550, 42100, 46310, 51362, 67100, 92620, 102724, 115775, 128405, 231550, 256810, 282491, 463100, 513620, 564982, 642025, 1129964, 1284050, 1412455, 2568100, 2824910, 5649820, 7062275, 14124550, 28249100]

約数ペア:

[(1, 28249100), (2, 14124550), (4, 7062275), (5, 5649820), (10, 2824910), (11, 2568100), (20, 1412455), (22, 1284050), (25, 1129964), (44, 642025), (50, 564982), (55, 513620), (61, 463100), (100, 282491), (110, 256810), (122, 231550), (220, 128405), (244, 115775), (275, 102724), (305, 92620), (421, 67100), (550, 51362), (610, 46310), (671, 42100), (842, 33550), (1100, 25681), (1220, 23155), (1342, 21050), (1525, 18524), (1684, 16775), (2105, 13420), (2684, 10525), (3050, 9262), (3355, 8420), (4210, 6710), (4631, 6100)]