77665480

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 128

約数和(自身を含む): 195955200

約数和(自身を除く): 118289720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 40, 41, 46, 58, 71, 82, 92, 115, 116, 142, 145, 164, 184, 205, 230, 232, 284, 290, 328, 355, 410, 460, 568, 580, 667, 710, 820, 920, 943, 1160, 1189, 1334, 1420, 1633, 1640, 1886, 2059, 2378, 2668, 2840, 2911, 3266, 3335, 3772, 4118, 4715, 4756, 5336, 5822, 5945, 6532, 6670, 7544, 8165, 8236, 9430, 9512, 10295, 11644, 11890, 13064, 13340, 14555, 16330, 16472, 18860, 20590, 23288, 23780, 26680, 27347, 29110, 32660, 37720, 41180, 47357, 47560, 54694, 58220, 65320, 66953, 82360, 84419, 94714, 109388, 116440, 133906, 136735, 168838, 189428, 218776, 236785, 267812, 273470, 334765, 337676, 378856, 422095, 473570, 535624, 546940, 669530, 675352, 844190, 947140, 1093880, 1339060, 1688380, 1894280, 1941637, 2678120, 3376760, 3883274, 7766548, 9708185, 15533096, 19416370, 38832740, 77665480]

約数ペア:

[(1, 77665480), (2, 38832740), (4, 19416370), (5, 15533096), (8, 9708185), (10, 7766548), (20, 3883274), (23, 3376760), (29, 2678120), (40, 1941637), (41, 1894280), (46, 1688380), (58, 1339060), (71, 1093880), (82, 947140), (92, 844190), (115, 675352), (116, 669530), (142, 546940), (145, 535624), (164, 473570), (184, 422095), (205, 378856), (230, 337676), (232, 334765), (284, 273470), (290, 267812), (328, 236785), (355, 218776), (410, 189428), (460, 168838), (568, 136735), (580, 133906), (667, 116440), (710, 109388), (820, 94714), (920, 84419), (943, 82360), (1160, 66953), (1189, 65320), (1334, 58220), (1420, 54694), (1633, 47560), (1640, 47357), (1886, 41180), (2059, 37720), (2378, 32660), (2668, 29110), (2840, 27347), (2911, 26680), (3266, 23780), (3335, 23288), (3772, 20590), (4118, 18860), (4715, 16472), (4756, 16330), (5336, 14555), (5822, 13340), (5945, 13064), (6532, 11890), (6670, 11644), (7544, 10295), (8165, 9512), (8236, 9430)]