20123409579

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1\times {\mathrm{3187}}^1$

素因数の和:3540

約数の個数: 64

約数和(自身を含む): 33506135040

約数和(自身を除く): 13382725461

約数列:

[1, 3, 7, 13, 21, 39, 91, 101, 229, 273, 303, 687, 707, 1313, 1603, 2121, 2977, 3187, 3939, 4809, 8931, 9191, 9561, 20839, 22309, 23129, 27573, 41431, 62517, 66927, 69387, 124293, 161903, 290017, 300677, 321887, 485709, 729823, 870051, 902031, 965661, 2104739, 2189469, 2253209, 4184531, 5108761, 6314217, 6759627, 9487699, 12553593, 15326283, 28463097, 29291717, 66413893, 73712123, 87875151, 199241679, 221136369, 515984861, 958257599, 1547954583, 2874772797, 6707803193, 20123409579]

約数ペア:

[(1, 20123409579), (3, 6707803193), (7, 2874772797), (13, 1547954583), (21, 958257599), (39, 515984861), (91, 221136369), (101, 199241679), (229, 87875151), (273, 73712123), (303, 66413893), (687, 29291717), (707, 28463097), (1313, 15326283), (1603, 12553593), (2121, 9487699), (2977, 6759627), (3187, 6314217), (3939, 5108761), (4809, 4184531), (8931, 2253209), (9191, 2189469), (9561, 2104739), (20839, 965661), (22309, 902031), (23129, 870051), (27573, 729823), (41431, 485709), (62517, 321887), (66927, 300677), (69387, 290017), (124293, 161903)]