15198100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{421}}^1$

素因数の和:473

約数の個数: 54

約数和(自身を含む): 34889694

約数和(自身を除く): 19691594

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 361, 380, 421, 475, 722, 842, 950, 1444, 1684, 1805, 1900, 2105, 3610, 4210, 7220, 7999, 8420, 9025, 10525, 15998, 18050, 21050, 31996, 36100, 39995, 42100, 79990, 151981, 159980, 199975, 303962, 399950, 607924, 759905, 799900, 1519810, 3039620, 3799525, 7599050, 15198100]

約数ペア:

[(1, 15198100), (2, 7599050), (4, 3799525), (5, 3039620), (10, 1519810), (19, 799900), (20, 759905), (25, 607924), (38, 399950), (50, 303962), (76, 199975), (95, 159980), (100, 151981), (190, 79990), (361, 42100), (380, 39995), (421, 36100), (475, 31996), (722, 21050), (842, 18050), (950, 15998), (1444, 10525), (1684, 9025), (1805, 8420), (1900, 7999), (2105, 7220), (3610, 4210)]