21637156960

素因数分解:

$2^5\times 5^1\times {\mathrm{277}}^1\times {\mathrm{488203}}^1$

素因数の和:488495

約数の個数: 48

約数和(自身を含む): 51302429136

約数和(自身を除く): 29665272176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 277, 554, 1108, 1385, 2216, 2770, 4432, 5540, 8864, 11080, 22160, 44320, 488203, 976406, 1952812, 2441015, 3905624, 4882030, 7811248, 9764060, 15622496, 19528120, 39056240, 78112480, 135232231, 270464462, 540928924, 676161155, 1081857848, 1352322310, 2163715696, 2704644620, 4327431392, 5409289240, 10818578480, 21637156960]

約数ペア:

[(1, 21637156960), (2, 10818578480), (4, 5409289240), (5, 4327431392), (8, 2704644620), (10, 2163715696), (16, 1352322310), (20, 1081857848), (32, 676161155), (40, 540928924), (80, 270464462), (160, 135232231), (277, 78112480), (554, 39056240), (1108, 19528120), (1385, 15622496), (2216, 9764060), (2770, 7811248), (4432, 4882030), (5540, 3905624), (8864, 2441015), (11080, 1952812), (22160, 976406), (44320, 488203)]