20131555820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8123}}^1\times {\mathrm{4273}}^1$

素因数の和:12434

約数の個数: 48

約数和(自身を含む): 43749689760

約数和(自身を除く): 23618133940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 4273, 8123, 8546, 16246, 17092, 21365, 32492, 40615, 42730, 81230, 85460, 123917, 162460, 235567, 247834, 471134, 495668, 619585, 942268, 1177835, 1239170, 2355670, 2478340, 4711340, 34709579, 69419158, 138838316, 173547895, 347095790, 694191580, 1006577791, 2013155582, 4026311164, 5032888955, 10065777910, 20131555820]

約数ペア:

[(1, 20131555820), (2, 10065777910), (4, 5032888955), (5, 4026311164), (10, 2013155582), (20, 1006577791), (29, 694191580), (58, 347095790), (116, 173547895), (145, 138838316), (290, 69419158), (580, 34709579), (4273, 4711340), (8123, 2478340), (8546, 2355670), (16246, 1239170), (17092, 1177835), (21365, 942268), (32492, 619585), (40615, 495668), (42730, 471134), (81230, 247834), (85460, 235567), (123917, 162460)]