19285040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:306

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 28711888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 47, 80, 92, 94, 115, 184, 188, 223, 230, 235, 368, 376, 446, 460, 470, 752, 892, 920, 940, 1081, 1115, 1784, 1840, 1880, 2162, 2230, 3568, 3760, 4324, 4460, 5129, 5405, 8648, 8920, 10258, 10481, 10810, 17296, 17840, 20516, 20962, 21620, 25645, 41032, 41924, 43240, 51290, 52405, 82064, 83848, 86480, 102580, 104810, 167696, 205160, 209620, 241063, 410320, 419240, 482126, 838480, 964252, 1205315, 1928504, 2410630, 3857008, 4821260, 9642520, 19285040]

約数ペア:

[(1, 19285040), (2, 9642520), (4, 4821260), (5, 3857008), (8, 2410630), (10, 1928504), (16, 1205315), (20, 964252), (23, 838480), (40, 482126), (46, 419240), (47, 410320), (80, 241063), (92, 209620), (94, 205160), (115, 167696), (184, 104810), (188, 102580), (223, 86480), (230, 83848), (235, 82064), (368, 52405), (376, 51290), (446, 43240), (460, 41924), (470, 41032), (752, 25645), (892, 21620), (920, 20962), (940, 20516), (1081, 17840), (1115, 17296), (1784, 10810), (1840, 10481), (1880, 10258), (2162, 8920), (2230, 8648), (3568, 5405), (3760, 5129), (4324, 4460)]