21455200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2063}}^1$

素因数の和:2096

約数の個数: 72

約数和(自身を含む): 56433888

約数和(自身を除く): 34978688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2063, 2080, 2600, 4126, 5200, 8252, 10315, 10400, 16504, 20630, 26819, 33008, 41260, 51575, 53638, 66016, 82520, 103150, 107276, 134095, 165040, 206300, 214552, 268190, 330080, 412600, 429104, 536380, 670475, 825200, 858208, 1072760, 1340950, 1650400, 2145520, 2681900, 4291040, 5363800, 10727600, 21455200]

約数ペア:

[(1, 21455200), (2, 10727600), (4, 5363800), (5, 4291040), (8, 2681900), (10, 2145520), (13, 1650400), (16, 1340950), (20, 1072760), (25, 858208), (26, 825200), (32, 670475), (40, 536380), (50, 429104), (52, 412600), (65, 330080), (80, 268190), (100, 214552), (104, 206300), (130, 165040), (160, 134095), (200, 107276), (208, 103150), (260, 82520), (325, 66016), (400, 53638), (416, 51575), (520, 41260), (650, 33008), (800, 26819), (1040, 20630), (1300, 16504), (2063, 10400), (2080, 10315), (2600, 8252), (4126, 5200)]