20218820996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{178039}}^1$

素因数の和:178172

約数の個数: 48

約数和(自身を含む): 40379472000

約数和(自身を除く): 20160651004

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 89, 116, 178, 319, 356, 638, 979, 1276, 1958, 2581, 3916, 5162, 10324, 28391, 56782, 113564, 178039, 356078, 712156, 1958429, 3916858, 5163131, 7833716, 10326262, 15845471, 20652524, 31690942, 56794441, 63381884, 113588882, 174300181, 227177764, 348600362, 459518659, 697200724, 919037318, 1838074636, 5054705249, 10109410498, 20218820996]

約数ペア:

[(1, 20218820996), (2, 10109410498), (4, 5054705249), (11, 1838074636), (22, 919037318), (29, 697200724), (44, 459518659), (58, 348600362), (89, 227177764), (116, 174300181), (178, 113588882), (319, 63381884), (356, 56794441), (638, 31690942), (979, 20652524), (1276, 15845471), (1958, 10326262), (2581, 7833716), (3916, 5163131), (5162, 3916858), (10324, 1958429), (28391, 712156), (56782, 356078), (113564, 178039)]