69890980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{593}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 150885504

約数和(自身を除く): 80994524

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 142, 166, 284, 332, 355, 415, 593, 710, 830, 1186, 1420, 1660, 2372, 2965, 5893, 5930, 11786, 11860, 23572, 29465, 42103, 49219, 58930, 84206, 98438, 117860, 168412, 196876, 210515, 246095, 421030, 492190, 842060, 984380, 3494549, 6989098, 13978196, 17472745, 34945490, 69890980]

約数ペア:

[(1, 69890980), (2, 34945490), (4, 17472745), (5, 13978196), (10, 6989098), (20, 3494549), (71, 984380), (83, 842060), (142, 492190), (166, 421030), (284, 246095), (332, 210515), (355, 196876), (415, 168412), (593, 117860), (710, 98438), (830, 84206), (1186, 58930), (1420, 49219), (1660, 42103), (2372, 29465), (2965, 23572), (5893, 11860), (5930, 11786)]