80420868

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{653}}^1$

素因数の和:985

約数の個数: 72

約数和(自身を含む): 222820416

約数和(自身を除く): 142399548

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 311, 396, 622, 653, 933, 1244, 1306, 1866, 1959, 2612, 2799, 3421, 3732, 3918, 5598, 5877, 6842, 7183, 7836, 10263, 11196, 11754, 13684, 14366, 20526, 21549, 23508, 28732, 30789, 41052, 43098, 61578, 64647, 86196, 123156, 129294, 203083, 258588, 406166, 609249, 812332, 1218498, 1827747, 2233913, 2436996, 3655494, 4467826, 6701739, 7310988, 8935652, 13403478, 20105217, 26806956, 40210434, 80420868]

約数ペア:

[(1, 80420868), (2, 40210434), (3, 26806956), (4, 20105217), (6, 13403478), (9, 8935652), (11, 7310988), (12, 6701739), (18, 4467826), (22, 3655494), (33, 2436996), (36, 2233913), (44, 1827747), (66, 1218498), (99, 812332), (132, 609249), (198, 406166), (311, 258588), (396, 203083), (622, 129294), (653, 123156), (933, 86196), (1244, 64647), (1306, 61578), (1866, 43098), (1959, 41052), (2612, 30789), (2799, 28732), (3421, 23508), (3732, 21549), (3918, 20526), (5598, 14366), (5877, 13684), (6842, 11754), (7183, 11196), (7836, 10263)]