20053930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:415

約数の個数: 64

約数和(自身を含む): 42819840

約数和(自身を除く): 22765910

約数列:

[1, 2, 5, 10, 13, 19, 23, 26, 38, 46, 65, 95, 115, 130, 190, 230, 247, 299, 353, 437, 494, 598, 706, 874, 1235, 1495, 1765, 2185, 2470, 2990, 3530, 4370, 4589, 5681, 6707, 8119, 9178, 11362, 13414, 16238, 22945, 28405, 33535, 40595, 45890, 56810, 67070, 81190, 87191, 105547, 154261, 174382, 211094, 308522, 435955, 527735, 771305, 871910, 1055470, 1542610, 2005393, 4010786, 10026965, 20053930]

約数ペア:

[(1, 20053930), (2, 10026965), (5, 4010786), (10, 2005393), (13, 1542610), (19, 1055470), (23, 871910), (26, 771305), (38, 527735), (46, 435955), (65, 308522), (95, 211094), (115, 174382), (130, 154261), (190, 105547), (230, 87191), (247, 81190), (299, 67070), (353, 56810), (437, 45890), (494, 40595), (598, 33535), (706, 28405), (874, 22945), (1235, 16238), (1495, 13414), (1765, 11362), (2185, 9178), (2470, 8119), (2990, 6707), (3530, 5681), (4370, 4589)]