208577380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{1091}}^1$

素因数の和:1201

約数の個数: 72

約数和(自身を含む): 487992960

約数和(自身を除く): 279415580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 121, 158, 220, 242, 316, 395, 484, 605, 790, 869, 1091, 1210, 1580, 1738, 2182, 2420, 3476, 4345, 4364, 5455, 8690, 9559, 10910, 12001, 17380, 19118, 21820, 24002, 38236, 47795, 48004, 60005, 86189, 95590, 120010, 132011, 172378, 191180, 240020, 264022, 344756, 430945, 528044, 660055, 861890, 948079, 1320110, 1723780, 1896158, 2640220, 3792316, 4740395, 9480790, 10428869, 18961580, 20857738, 41715476, 52144345, 104288690, 208577380]

約数ペア:

[(1, 208577380), (2, 104288690), (4, 52144345), (5, 41715476), (10, 20857738), (11, 18961580), (20, 10428869), (22, 9480790), (44, 4740395), (55, 3792316), (79, 2640220), (110, 1896158), (121, 1723780), (158, 1320110), (220, 948079), (242, 861890), (316, 660055), (395, 528044), (484, 430945), (605, 344756), (790, 264022), (869, 240020), (1091, 191180), (1210, 172378), (1580, 132011), (1738, 120010), (2182, 95590), (2420, 86189), (3476, 60005), (4345, 48004), (4364, 47795), (5455, 38236), (8690, 24002), (9559, 21820), (10910, 19118), (12001, 17380)]