20176037680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{769}}^1$

素因数の和:1263

約数の個数: 160

約数和(自身を含む): 50768625600

約数和(自身を除く): 30592587920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 421, 656, 760, 769, 779, 820, 842, 1520, 1538, 1558, 1640, 1684, 2105, 3076, 3116, 3280, 3368, 3845, 3895, 4210, 6152, 6232, 6736, 7690, 7790, 7999, 8420, 12304, 12464, 14611, 15380, 15580, 15998, 16840, 17261, 29222, 30760, 31160, 31529, 31996, 33680, 34522, 39995, 58444, 61520, 62320, 63058, 63992, 69044, 73055, 79990, 86305, 116888, 126116, 127984, 138088, 146110, 157645, 159980, 172610, 233776, 252232, 276176, 292220, 315290, 319960, 323749, 327959, 345220, 504464, 584440, 599051, 630580, 639920, 647498, 655918, 690440, 1168880, 1198102, 1261160, 1294996, 1311836, 1380880, 1618745, 1639795, 2396204, 2522320, 2589992, 2623672, 2995255, 3237490, 3279590, 4792408, 5179984, 5247344, 5990510, 6151231, 6474980, 6559180, 9584816, 11981020, 12302462, 12949960, 13118360, 13273709, 23962040, 24604924, 25899920, 26236720, 26547418, 30756155, 47924080, 49209848, 53094836, 61512310, 66368545, 98419696, 106189672, 123024620, 132737090, 212379344, 246049240, 252200471, 265474180, 492098480, 504400942, 530948360, 1008801884, 1061896720, 1261002355, 2017603768, 2522004710, 4035207536, 5044009420, 10088018840, 20176037680]

約数ペア:

[(1, 20176037680), (2, 10088018840), (4, 5044009420), (5, 4035207536), (8, 2522004710), (10, 2017603768), (16, 1261002355), (19, 1061896720), (20, 1008801884), (38, 530948360), (40, 504400942), (41, 492098480), (76, 265474180), (80, 252200471), (82, 246049240), (95, 212379344), (152, 132737090), (164, 123024620), (190, 106189672), (205, 98419696), (304, 66368545), (328, 61512310), (380, 53094836), (410, 49209848), (421, 47924080), (656, 30756155), (760, 26547418), (769, 26236720), (779, 25899920), (820, 24604924), (842, 23962040), (1520, 13273709), (1538, 13118360), (1558, 12949960), (1640, 12302462), (1684, 11981020), (2105, 9584816), (3076, 6559180), (3116, 6474980), (3280, 6151231), (3368, 5990510), (3845, 5247344), (3895, 5179984), (4210, 4792408), (6152, 3279590), (6232, 3237490), (6736, 2995255), (7690, 2623672), (7790, 2589992), (7999, 2522320), (8420, 2396204), (12304, 1639795), (12464, 1618745), (14611, 1380880), (15380, 1311836), (15580, 1294996), (15998, 1261160), (16840, 1198102), (17261, 1168880), (29222, 690440), (30760, 655918), (31160, 647498), (31529, 639920), (31996, 630580), (33680, 599051), (34522, 584440), (39995, 504464), (58444, 345220), (61520, 327959), (62320, 323749), (63058, 319960), (63992, 315290), (69044, 292220), (73055, 276176), (79990, 252232), (86305, 233776), (116888, 172610), (126116, 159980), (127984, 157645), (138088, 146110)]