421569280

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 1118476800

約数和(自身を除く): 696907520

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 79, 80, 88, 110, 128, 158, 160, 176, 220, 256, 316, 320, 352, 379, 395, 440, 632, 640, 704, 758, 790, 869, 880, 1264, 1280, 1408, 1516, 1580, 1738, 1760, 1895, 2528, 2816, 3032, 3160, 3476, 3520, 3790, 4169, 4345, 5056, 6064, 6320, 6952, 7040, 7580, 8338, 8690, 10112, 12128, 12640, 13904, 14080, 15160, 16676, 17380, 20224, 20845, 24256, 25280, 27808, 29941, 30320, 33352, 34760, 41690, 48512, 50560, 55616, 59882, 60640, 66704, 69520, 83380, 97024, 101120, 111232, 119764, 121280, 133408, 139040, 149705, 166760, 222464, 239528, 242560, 266816, 278080, 299410, 329351, 333520, 479056, 485120, 533632, 556160, 598820, 658702, 667040, 958112, 1067264, 1112320, 1197640, 1317404, 1334080, 1646755, 1916224, 2395280, 2634808, 2668160, 3293510, 3832448, 4790560, 5269616, 5336320, 6587020, 7664896, 9581120, 10539232, 13174040, 19162240, 21078464, 26348080, 38324480, 42156928, 52696160, 84313856, 105392320, 210784640, 421569280]

約数ペア:

[(1, 421569280), (2, 210784640), (4, 105392320), (5, 84313856), (8, 52696160), (10, 42156928), (11, 38324480), (16, 26348080), (20, 21078464), (22, 19162240), (32, 13174040), (40, 10539232), (44, 9581120), (55, 7664896), (64, 6587020), (79, 5336320), (80, 5269616), (88, 4790560), (110, 3832448), (128, 3293510), (158, 2668160), (160, 2634808), (176, 2395280), (220, 1916224), (256, 1646755), (316, 1334080), (320, 1317404), (352, 1197640), (379, 1112320), (395, 1067264), (440, 958112), (632, 667040), (640, 658702), (704, 598820), (758, 556160), (790, 533632), (869, 485120), (880, 479056), (1264, 333520), (1280, 329351), (1408, 299410), (1516, 278080), (1580, 266816), (1738, 242560), (1760, 239528), (1895, 222464), (2528, 166760), (2816, 149705), (3032, 139040), (3160, 133408), (3476, 121280), (3520, 119764), (3790, 111232), (4169, 101120), (4345, 97024), (5056, 83380), (6064, 69520), (6320, 66704), (6952, 60640), (7040, 59882), (7580, 55616), (8338, 50560), (8690, 48512), (10112, 41690), (12128, 34760), (12640, 33352), (13904, 30320), (14080, 29941), (15160, 27808), (16676, 25280), (17380, 24256), (20224, 20845)]