831399309

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 1387507968

約数和(自身を除く): 556108659

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 107, 117, 141, 157, 321, 351, 423, 471, 611, 963, 1053, 1269, 1391, 1413, 1833, 2041, 2889, 3807, 4173, 4239, 5029, 5499, 6123, 7379, 8667, 12519, 12717, 15087, 16497, 16799, 18369, 22137, 37557, 45261, 49491, 50397, 55107, 65377, 66411, 95927, 112671, 135783, 151191, 165321, 196131, 199233, 218387, 287781, 407349, 453573, 588393, 597699, 655161, 789553, 863343, 1360719, 1765179, 1965483, 2368659, 2590029, 5295537, 5896449, 7105977, 7770087, 10264189, 17689347, 21317931, 30792567, 63953793, 92377701, 277133103, 831399309]

約数ペア:

[(1, 831399309), (3, 277133103), (9, 92377701), (13, 63953793), (27, 30792567), (39, 21317931), (47, 17689347), (81, 10264189), (107, 7770087), (117, 7105977), (141, 5896449), (157, 5295537), (321, 2590029), (351, 2368659), (423, 1965483), (471, 1765179), (611, 1360719), (963, 863343), (1053, 789553), (1269, 655161), (1391, 597699), (1413, 588393), (1833, 453573), (2041, 407349), (2889, 287781), (3807, 218387), (4173, 199233), (4239, 196131), (5029, 165321), (5499, 151191), (6123, 135783), (7379, 112671), (8667, 95927), (12519, 66411), (12717, 65377), (15087, 55107), (16497, 50397), (16799, 49491), (18369, 45261), (22137, 37557)]