16982980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 43545600

約数和(自身を除く): 26562620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 47, 58, 70, 89, 94, 116, 140, 145, 178, 188, 203, 235, 290, 329, 356, 406, 445, 470, 580, 623, 658, 812, 890, 940, 1015, 1246, 1316, 1363, 1645, 1780, 2030, 2492, 2581, 2726, 3115, 3290, 4060, 4183, 5162, 5452, 6230, 6580, 6815, 8366, 9541, 10324, 12460, 12905, 13630, 16732, 18067, 19082, 20915, 25810, 27260, 29281, 36134, 38164, 41830, 47705, 51620, 58562, 72268, 83660, 90335, 95410, 117124, 121307, 146405, 180670, 190820, 242614, 292810, 361340, 485228, 585620, 606535, 849149, 1213070, 1698298, 2426140, 3396596, 4245745, 8491490, 16982980]

約数ペア:

[(1, 16982980), (2, 8491490), (4, 4245745), (5, 3396596), (7, 2426140), (10, 1698298), (14, 1213070), (20, 849149), (28, 606535), (29, 585620), (35, 485228), (47, 361340), (58, 292810), (70, 242614), (89, 190820), (94, 180670), (116, 146405), (140, 121307), (145, 117124), (178, 95410), (188, 90335), (203, 83660), (235, 72268), (290, 58562), (329, 51620), (356, 47705), (406, 41830), (445, 38164), (470, 36134), (580, 29281), (623, 27260), (658, 25810), (812, 20915), (890, 19082), (940, 18067), (1015, 16732), (1246, 13630), (1316, 12905), (1363, 12460), (1645, 10324), (1780, 9541), (2030, 8366), (2492, 6815), (2581, 6580), (2726, 6230), (3115, 5452), (3290, 5162), (4060, 4183)]