388550960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:451

約数の個数: 160

約数和(自身を含む): 1091930112

約数和(自身を除く): 703379152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 97, 112, 115, 140, 161, 184, 194, 230, 280, 311, 322, 368, 388, 460, 485, 560, 622, 644, 679, 776, 805, 920, 970, 1244, 1288, 1358, 1552, 1555, 1610, 1840, 1940, 2177, 2231, 2488, 2576, 2716, 3110, 3220, 3395, 3880, 4354, 4462, 4976, 5432, 6220, 6440, 6790, 7153, 7760, 8708, 8924, 10864, 10885, 11155, 12440, 12880, 13580, 14306, 15617, 17416, 17848, 21770, 22310, 24880, 27160, 28612, 30167, 31234, 34832, 35696, 35765, 43540, 44620, 50071, 54320, 57224, 60334, 62468, 71530, 78085, 87080, 89240, 100142, 114448, 120668, 124936, 143060, 150835, 156170, 174160, 178480, 200284, 211169, 241336, 249872, 250355, 286120, 301670, 312340, 400568, 422338, 482672, 500710, 572240, 603340, 624680, 693841, 801136, 844676, 1001420, 1055845, 1206680, 1249360, 1387682, 1689352, 2002840, 2111690, 2413360, 2775364, 3378704, 3469205, 4005680, 4223380, 4856887, 5550728, 6938410, 8446760, 9713774, 11101456, 13876820, 16893520, 19427548, 24284435, 27753640, 38855096, 48568870, 55507280, 77710192, 97137740, 194275480, 388550960]

約数ペア:

[(1, 388550960), (2, 194275480), (4, 97137740), (5, 77710192), (7, 55507280), (8, 48568870), (10, 38855096), (14, 27753640), (16, 24284435), (20, 19427548), (23, 16893520), (28, 13876820), (35, 11101456), (40, 9713774), (46, 8446760), (56, 6938410), (70, 5550728), (80, 4856887), (92, 4223380), (97, 4005680), (112, 3469205), (115, 3378704), (140, 2775364), (161, 2413360), (184, 2111690), (194, 2002840), (230, 1689352), (280, 1387682), (311, 1249360), (322, 1206680), (368, 1055845), (388, 1001420), (460, 844676), (485, 801136), (560, 693841), (622, 624680), (644, 603340), (679, 572240), (776, 500710), (805, 482672), (920, 422338), (970, 400568), (1244, 312340), (1288, 301670), (1358, 286120), (1552, 250355), (1555, 249872), (1610, 241336), (1840, 211169), (1940, 200284), (2177, 178480), (2231, 174160), (2488, 156170), (2576, 150835), (2716, 143060), (3110, 124936), (3220, 120668), (3395, 114448), (3880, 100142), (4354, 89240), (4462, 87080), (4976, 78085), (5432, 71530), (6220, 62468), (6440, 60334), (6790, 57224), (7153, 54320), (7760, 50071), (8708, 44620), (8924, 43540), (10864, 35765), (10885, 35696), (11155, 34832), (12440, 31234), (12880, 30167), (13580, 28612), (14306, 27160), (15617, 24880), (17416, 22310), (17848, 21770)]