261863228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1\times {\mathrm{383}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 514805760

約数和(自身を除く): 252942532

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 379, 383, 451, 758, 766, 902, 1516, 1532, 1804, 4169, 4213, 8338, 8426, 15539, 15703, 16676, 16852, 31078, 31406, 62156, 62812, 145157, 170929, 172733, 290314, 341858, 345466, 580628, 683716, 690932, 1596727, 3193454, 5951437, 6386908, 11902874, 23805748, 65465807, 130931614, 261863228]

約数ペア:

[(1, 261863228), (2, 130931614), (4, 65465807), (11, 23805748), (22, 11902874), (41, 6386908), (44, 5951437), (82, 3193454), (164, 1596727), (379, 690932), (383, 683716), (451, 580628), (758, 345466), (766, 341858), (902, 290314), (1516, 172733), (1532, 170929), (1804, 145157), (4169, 62812), (4213, 62156), (8338, 31406), (8426, 31078), (15539, 16852), (15703, 16676)]