128293920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{53}}^1$

素因数の和:156

約数の個数: 216

約数和(自身を含む): 457208388

約数和(自身を除く): 328914468

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 53, 60, 72, 80, 82, 90, 96, 106, 120, 123, 144, 159, 160, 164, 180, 205, 212, 240, 246, 265, 288, 318, 328, 360, 369, 410, 424, 477, 480, 492, 530, 615, 636, 656, 720, 738, 795, 820, 848, 954, 984, 1060, 1230, 1272, 1312, 1440, 1476, 1590, 1640, 1681, 1696, 1845, 1908, 1968, 2120, 2173, 2385, 2460, 2544, 2952, 3180, 3280, 3362, 3690, 3816, 3936, 4240, 4346, 4770, 4920, 5043, 5088, 5904, 6360, 6519, 6560, 6724, 7380, 7632, 8405, 8480, 8692, 9540, 9840, 10086, 10865, 11808, 12720, 13038, 13448, 14760, 15129, 15264, 16810, 17384, 19080, 19557, 19680, 20172, 21730, 25215, 25440, 26076, 26896, 29520, 30258, 32595, 33620, 34768, 38160, 39114, 40344, 43460, 50430, 52152, 53792, 59040, 60516, 65190, 67240, 69536, 75645, 76320, 78228, 80688, 86920, 89093, 97785, 100860, 104304, 121032, 130380, 134480, 151290, 156456, 161376, 173840, 178186, 195570, 201720, 208608, 242064, 260760, 267279, 268960, 302580, 312912, 347680, 356372, 391140, 403440, 445465, 484128, 521520, 534558, 605160, 625824, 712744, 782280, 801837, 806880, 890930, 1043040, 1069116, 1210320, 1336395, 1425488, 1564560, 1603674, 1781860, 2138232, 2420640, 2672790, 2850976, 3129120, 3207348, 3563720, 4009185, 4276464, 5345580, 6414696, 7127440, 8018370, 8552928, 10691160, 12829392, 14254880, 16036740, 21382320, 25658784, 32073480, 42764640, 64146960, 128293920]

約数ペア:

[(1, 128293920), (2, 64146960), (3, 42764640), (4, 32073480), (5, 25658784), (6, 21382320), (8, 16036740), (9, 14254880), (10, 12829392), (12, 10691160), (15, 8552928), (16, 8018370), (18, 7127440), (20, 6414696), (24, 5345580), (30, 4276464), (32, 4009185), (36, 3563720), (40, 3207348), (41, 3129120), (45, 2850976), (48, 2672790), (53, 2420640), (60, 2138232), (72, 1781860), (80, 1603674), (82, 1564560), (90, 1425488), (96, 1336395), (106, 1210320), (120, 1069116), (123, 1043040), (144, 890930), (159, 806880), (160, 801837), (164, 782280), (180, 712744), (205, 625824), (212, 605160), (240, 534558), (246, 521520), (265, 484128), (288, 445465), (318, 403440), (328, 391140), (360, 356372), (369, 347680), (410, 312912), (424, 302580), (477, 268960), (480, 267279), (492, 260760), (530, 242064), (615, 208608), (636, 201720), (656, 195570), (720, 178186), (738, 173840), (795, 161376), (820, 156456), (848, 151290), (954, 134480), (984, 130380), (1060, 121032), (1230, 104304), (1272, 100860), (1312, 97785), (1440, 89093), (1476, 86920), (1590, 80688), (1640, 78228), (1681, 76320), (1696, 75645), (1845, 69536), (1908, 67240), (1968, 65190), (2120, 60516), (2173, 59040), (2385, 53792), (2460, 52152), (2544, 50430), (2952, 43460), (3180, 40344), (3280, 39114), (3362, 38160), (3690, 34768), (3816, 33620), (3936, 32595), (4240, 30258), (4346, 29520), (4770, 26896), (4920, 26076), (5043, 25440), (5088, 25215), (5904, 21730), (6360, 20172), (6519, 19680), (6560, 19557), (6724, 19080), (7380, 17384), (7632, 16810), (8405, 15264), (8480, 15129), (8692, 14760), (9540, 13448), (9840, 13038), (10086, 12720), (10865, 11808)]