280175140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{367}}^1$

素因数の和:450

約数の個数: 144

約数和(自身を含む): 740033280

約数和(自身を除く): 459858140

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 41, 49, 70, 76, 82, 95, 98, 133, 140, 164, 190, 196, 205, 245, 266, 287, 367, 380, 410, 490, 532, 574, 665, 734, 779, 820, 931, 980, 1148, 1330, 1435, 1468, 1558, 1835, 1862, 2009, 2569, 2660, 2870, 3116, 3670, 3724, 3895, 4018, 4655, 5138, 5453, 5740, 6973, 7340, 7790, 8036, 9310, 10045, 10276, 10906, 12845, 13946, 15047, 15580, 17983, 18620, 20090, 21812, 25690, 27265, 27892, 30094, 34865, 35966, 38171, 40180, 48811, 51380, 54530, 60188, 69730, 71932, 75235, 76342, 89915, 97622, 105329, 109060, 139460, 150470, 152684, 179830, 190855, 195244, 210658, 244055, 285893, 300940, 341677, 359660, 381710, 421316, 488110, 526645, 571786, 683354, 737303, 763420, 976220, 1053290, 1143572, 1366708, 1429465, 1474606, 1708385, 2001251, 2106580, 2858930, 2949212, 3416770, 3686515, 4002502, 5717860, 6833540, 7373030, 8005004, 10006255, 14008757, 14746060, 20012510, 28017514, 40025020, 56035028, 70043785, 140087570, 280175140]

約数ペア:

[(1, 280175140), (2, 140087570), (4, 70043785), (5, 56035028), (7, 40025020), (10, 28017514), (14, 20012510), (19, 14746060), (20, 14008757), (28, 10006255), (35, 8005004), (38, 7373030), (41, 6833540), (49, 5717860), (70, 4002502), (76, 3686515), (82, 3416770), (95, 2949212), (98, 2858930), (133, 2106580), (140, 2001251), (164, 1708385), (190, 1474606), (196, 1429465), (205, 1366708), (245, 1143572), (266, 1053290), (287, 976220), (367, 763420), (380, 737303), (410, 683354), (490, 571786), (532, 526645), (574, 488110), (665, 421316), (734, 381710), (779, 359660), (820, 341677), (931, 300940), (980, 285893), (1148, 244055), (1330, 210658), (1435, 195244), (1468, 190855), (1558, 179830), (1835, 152684), (1862, 150470), (2009, 139460), (2569, 109060), (2660, 105329), (2870, 97622), (3116, 89915), (3670, 76342), (3724, 75235), (3895, 71932), (4018, 69730), (4655, 60188), (5138, 54530), (5453, 51380), (5740, 48811), (6973, 40180), (7340, 38171), (7790, 35966), (8036, 34865), (9310, 30094), (10045, 27892), (10276, 27265), (10906, 25690), (12845, 21812), (13946, 20090), (15047, 18620), (15580, 17983)]