720813303

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1\times {\mathrm{317}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 1252869120

約数和(自身を除く): 532055817

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 227, 317, 371, 477, 681, 951, 1113, 1431, 1589, 2043, 2219, 2853, 3339, 4767, 6129, 6657, 8559, 10017, 12031, 14301, 16801, 19971, 36093, 42903, 50403, 59913, 71959, 84217, 108279, 117607, 151209, 215877, 252651, 324837, 352821, 453627, 503713, 647631, 757953, 1058463, 1511139, 1942893, 2273859, 3175389, 3813827, 4533417, 11441481, 13600251, 26696789, 34324443, 80090367, 102973329, 240271101, 720813303]

約数ペア:

[(1, 720813303), (3, 240271101), (7, 102973329), (9, 80090367), (21, 34324443), (27, 26696789), (53, 13600251), (63, 11441481), (159, 4533417), (189, 3813827), (227, 3175389), (317, 2273859), (371, 1942893), (477, 1511139), (681, 1058463), (951, 757953), (1113, 647631), (1431, 503713), (1589, 453627), (2043, 352821), (2219, 324837), (2853, 252651), (3339, 215877), (4767, 151209), (6129, 117607), (6657, 108279), (8559, 84217), (10017, 71959), (12031, 59913), (14301, 50403), (16801, 42903), (19971, 36093)]