161004025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 272982528

約数和(自身を除く): 111978503

約数列:

[1, 5, 7, 13, 17, 23, 25, 35, 65, 85, 91, 115, 119, 161, 175, 181, 221, 299, 325, 391, 425, 455, 575, 595, 805, 905, 1105, 1267, 1495, 1547, 1955, 2093, 2275, 2353, 2737, 2975, 3077, 4025, 4163, 4525, 5083, 5525, 6335, 7475, 7735, 9775, 10465, 11765, 13685, 15385, 16471, 20815, 21539, 25415, 29141, 31675, 35581, 38675, 40001, 52325, 54119, 58825, 68425, 70771, 76925, 82355, 104075, 107695, 127075, 145705, 177905, 200005, 270595, 280007, 353855, 378833, 411775, 495397, 538475, 728525, 889525, 920023, 1000025, 1352975, 1400035, 1769275, 1894165, 2476985, 4600115, 6440161, 7000175, 9470825, 12384925, 23000575, 32200805, 161004025]

約数ペア:

[(1, 161004025), (5, 32200805), (7, 23000575), (13, 12384925), (17, 9470825), (23, 7000175), (25, 6440161), (35, 4600115), (65, 2476985), (85, 1894165), (91, 1769275), (115, 1400035), (119, 1352975), (161, 1000025), (175, 920023), (181, 889525), (221, 728525), (299, 538475), (325, 495397), (391, 411775), (425, 378833), (455, 353855), (575, 280007), (595, 270595), (805, 200005), (905, 177905), (1105, 145705), (1267, 127075), (1495, 107695), (1547, 104075), (1955, 82355), (2093, 76925), (2275, 70771), (2353, 68425), (2737, 58825), (2975, 54119), (3077, 52325), (4025, 40001), (4163, 38675), (4525, 35581), (5083, 31675), (5525, 29141), (6335, 25415), (7475, 21539), (7735, 20815), (9775, 16471), (10465, 15385), (11765, 13685)]