1955148880

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{309359}}^1$

素因数の和:309451

約数の個数: 40

約数和(自身を含む): 4603276800

約数和(自身を除く): 2648127920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 309359, 618718, 1237436, 1546795, 2474872, 3093590, 4949744, 6187180, 12374360, 24439361, 24748720, 48878722, 97757444, 122196805, 195514888, 244393610, 391029776, 488787220, 977574440, 1955148880]

約数ペア:

[(1, 1955148880), (2, 977574440), (4, 488787220), (5, 391029776), (8, 244393610), (10, 195514888), (16, 122196805), (20, 97757444), (40, 48878722), (79, 24748720), (80, 24439361), (158, 12374360), (316, 6187180), (395, 4949744), (632, 3093590), (790, 2474872), (1264, 1546795), (1580, 1237436), (3160, 618718), (6320, 309359)]