689902227

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 1207291904

約数和(自身を除く): 517389677

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 127, 161, 163, 207, 381, 483, 489, 529, 889, 1141, 1143, 1449, 1467, 1587, 2667, 2921, 3423, 3703, 3749, 4761, 8001, 8763, 10269, 11109, 11247, 20447, 20701, 26243, 26289, 33327, 33741, 61341, 62103, 67183, 78729, 86227, 144907, 184023, 186309, 201549, 236187, 258681, 434721, 470281, 476123, 603589, 604647, 776043, 1304163, 1410843, 1428369, 1810767, 3332861, 4232529, 4285107, 5432301, 9998583, 10950829, 29995749, 32852487, 76655803, 98557461, 229967409, 689902227]

約数ペア:

[(1, 689902227), (3, 229967409), (7, 98557461), (9, 76655803), (21, 32852487), (23, 29995749), (63, 10950829), (69, 9998583), (127, 5432301), (161, 4285107), (163, 4232529), (207, 3332861), (381, 1810767), (483, 1428369), (489, 1410843), (529, 1304163), (889, 776043), (1141, 604647), (1143, 603589), (1449, 476123), (1467, 470281), (1587, 434721), (2667, 258681), (2921, 236187), (3423, 201549), (3703, 186309), (3749, 184023), (4761, 144907), (8001, 86227), (8763, 78729), (10269, 67183), (11109, 62103), (11247, 61341), (20447, 33741), (20701, 33327), (26243, 26289)]