201618500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^2\times {\mathrm{1117}}^1$

素因数の和:1174

約数の個数: 72

約数和(自身を含む): 465146136

約数和(自身を除く): 263527636

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 361, 380, 475, 500, 722, 950, 1117, 1444, 1805, 1900, 2234, 2375, 3610, 4468, 4750, 5585, 7220, 9025, 9500, 11170, 18050, 21223, 22340, 27925, 36100, 42446, 45125, 55850, 84892, 90250, 106115, 111700, 139625, 180500, 212230, 279250, 403237, 424460, 530575, 558500, 806474, 1061150, 1612948, 2016185, 2122300, 2652875, 4032370, 5305750, 8064740, 10080925, 10611500, 20161850, 40323700, 50404625, 100809250, 201618500]

約数ペア:

[(1, 201618500), (2, 100809250), (4, 50404625), (5, 40323700), (10, 20161850), (19, 10611500), (20, 10080925), (25, 8064740), (38, 5305750), (50, 4032370), (76, 2652875), (95, 2122300), (100, 2016185), (125, 1612948), (190, 1061150), (250, 806474), (361, 558500), (380, 530575), (475, 424460), (500, 403237), (722, 279250), (950, 212230), (1117, 180500), (1444, 139625), (1805, 111700), (1900, 106115), (2234, 90250), (2375, 84892), (3610, 55850), (4468, 45125), (4750, 42446), (5585, 36100), (7220, 27925), (9025, 22340), (9500, 21223), (11170, 18050)]