991849740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1\times {\mathrm{179}}^1$

素因数の和:444

約数の個数: 192

約数和(自身を含む): 3251404800

約数和(自身を除く): 2259555060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 79, 84, 105, 140, 158, 167, 179, 210, 237, 316, 334, 358, 395, 420, 474, 501, 537, 553, 668, 716, 790, 835, 895, 948, 1002, 1074, 1106, 1169, 1185, 1253, 1580, 1659, 1670, 1790, 2004, 2148, 2212, 2338, 2370, 2505, 2506, 2685, 2765, 3318, 3340, 3507, 3580, 3759, 4676, 4740, 5010, 5012, 5370, 5530, 5845, 6265, 6636, 7014, 7518, 8295, 10020, 10740, 11060, 11690, 12530, 13193, 14028, 14141, 15036, 16590, 17535, 18795, 23380, 25060, 26386, 28282, 29893, 33180, 35070, 37590, 39579, 42423, 52772, 56564, 59786, 65965, 70140, 70705, 75180, 79158, 84846, 89679, 92351, 98987, 119572, 131930, 141410, 149465, 158316, 169692, 179358, 184702, 197895, 197974, 209251, 212115, 263860, 277053, 282820, 296961, 298930, 358716, 369404, 395790, 395948, 418502, 424230, 448395, 461755, 494935, 554106, 593922, 597860, 627753, 791580, 837004, 848460, 896790, 923510, 989870, 1046255, 1108212, 1187844, 1255506, 1385265, 1484805, 1793580, 1847020, 1979740, 2092510, 2361547, 2511012, 2770530, 2969610, 3138765, 4185020, 4723094, 5541060, 5939220, 6277530, 7084641, 9446188, 11807735, 12555060, 14169282, 16530829, 23615470, 28338564, 33061658, 35423205, 47230940, 49592487, 66123316, 70846410, 82654145, 99184974, 141692820, 165308290, 198369948, 247962435, 330616580, 495924870, 991849740]

約数ペア:

[(1, 991849740), (2, 495924870), (3, 330616580), (4, 247962435), (5, 198369948), (6, 165308290), (7, 141692820), (10, 99184974), (12, 82654145), (14, 70846410), (15, 66123316), (20, 49592487), (21, 47230940), (28, 35423205), (30, 33061658), (35, 28338564), (42, 23615470), (60, 16530829), (70, 14169282), (79, 12555060), (84, 11807735), (105, 9446188), (140, 7084641), (158, 6277530), (167, 5939220), (179, 5541060), (210, 4723094), (237, 4185020), (316, 3138765), (334, 2969610), (358, 2770530), (395, 2511012), (420, 2361547), (474, 2092510), (501, 1979740), (537, 1847020), (553, 1793580), (668, 1484805), (716, 1385265), (790, 1255506), (835, 1187844), (895, 1108212), (948, 1046255), (1002, 989870), (1074, 923510), (1106, 896790), (1169, 848460), (1185, 837004), (1253, 791580), (1580, 627753), (1659, 597860), (1670, 593922), (1790, 554106), (2004, 494935), (2148, 461755), (2212, 448395), (2338, 424230), (2370, 418502), (2505, 395948), (2506, 395790), (2685, 369404), (2765, 358716), (3318, 298930), (3340, 296961), (3507, 282820), (3580, 277053), (3759, 263860), (4676, 212115), (4740, 209251), (5010, 197974), (5012, 197895), (5370, 184702), (5530, 179358), (5845, 169692), (6265, 158316), (6636, 149465), (7014, 141410), (7518, 131930), (8295, 119572), (10020, 98987), (10740, 92351), (11060, 89679), (11690, 84846), (12530, 79158), (13193, 75180), (14028, 70705), (14141, 70140), (15036, 65965), (16590, 59786), (17535, 56564), (18795, 52772), (23380, 42423), (25060, 39579), (26386, 37590), (28282, 35070), (29893, 33180)]