20389356

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2293}}^1$

素因数の和:2335

約数の個数: 72

約数和(自身を含む): 58451120

約数和(自身を除く): 38061764

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 171, 228, 234, 247, 342, 468, 494, 684, 741, 988, 1482, 2223, 2293, 2964, 4446, 4586, 6879, 8892, 9172, 13758, 20637, 27516, 29809, 41274, 43567, 59618, 82548, 87134, 89427, 119236, 130701, 174268, 178854, 261402, 268281, 357708, 392103, 522804, 536562, 566371, 784206, 1073124, 1132742, 1568412, 1699113, 2265484, 3398226, 5097339, 6796452, 10194678, 20389356]

約数ペア:

[(1, 20389356), (2, 10194678), (3, 6796452), (4, 5097339), (6, 3398226), (9, 2265484), (12, 1699113), (13, 1568412), (18, 1132742), (19, 1073124), (26, 784206), (36, 566371), (38, 536562), (39, 522804), (52, 392103), (57, 357708), (76, 268281), (78, 261402), (114, 178854), (117, 174268), (156, 130701), (171, 119236), (228, 89427), (234, 87134), (247, 82548), (342, 59618), (468, 43567), (494, 41274), (684, 29809), (741, 27516), (988, 20637), (1482, 13758), (2223, 9172), (2293, 8892), (2964, 6879), (4446, 4586)]