19977570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3217}}^1$

素因数の和:3256

約数の個数: 64

約数和(自身を含む): 55607040

約数和(自身を除く): 35629470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 690, 1035, 1242, 2070, 3105, 3217, 6210, 6434, 9651, 16085, 19302, 28953, 32170, 48255, 57906, 73991, 86859, 96510, 144765, 147982, 173718, 221973, 289530, 369955, 434295, 443946, 665919, 739910, 868590, 1109865, 1331838, 1997757, 2219730, 3329595, 3995514, 6659190, 9988785, 19977570]

約数ペア:

[(1, 19977570), (2, 9988785), (3, 6659190), (5, 3995514), (6, 3329595), (9, 2219730), (10, 1997757), (15, 1331838), (18, 1109865), (23, 868590), (27, 739910), (30, 665919), (45, 443946), (46, 434295), (54, 369955), (69, 289530), (90, 221973), (115, 173718), (135, 147982), (138, 144765), (207, 96510), (230, 86859), (270, 73991), (345, 57906), (414, 48255), (621, 32170), (690, 28953), (1035, 19302), (1242, 16085), (2070, 9651), (3105, 6434), (3217, 6210)]