128221520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2267}}^1$

素因数の和:2388

約数の個数: 80

約数和(自身を含む): 344227968

約数和(自身を除く): 216006448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 101, 112, 140, 202, 280, 404, 505, 560, 707, 808, 1010, 1414, 1616, 2020, 2267, 2828, 3535, 4040, 4534, 5656, 7070, 8080, 9068, 11312, 11335, 14140, 15869, 18136, 22670, 28280, 31738, 36272, 45340, 56560, 63476, 79345, 90680, 126952, 158690, 181360, 228967, 253904, 317380, 457934, 634760, 915868, 1144835, 1269520, 1602769, 1831736, 2289670, 3205538, 3663472, 4579340, 6411076, 8013845, 9158680, 12822152, 16027690, 18317360, 25644304, 32055380, 64110760, 128221520]

約数ペア:

[(1, 128221520), (2, 64110760), (4, 32055380), (5, 25644304), (7, 18317360), (8, 16027690), (10, 12822152), (14, 9158680), (16, 8013845), (20, 6411076), (28, 4579340), (35, 3663472), (40, 3205538), (56, 2289670), (70, 1831736), (80, 1602769), (101, 1269520), (112, 1144835), (140, 915868), (202, 634760), (280, 457934), (404, 317380), (505, 253904), (560, 228967), (707, 181360), (808, 158690), (1010, 126952), (1414, 90680), (1616, 79345), (2020, 63476), (2267, 56560), (2828, 45340), (3535, 36272), (4040, 31738), (4534, 28280), (5656, 22670), (7070, 18136), (8080, 15869), (9068, 14140), (11312, 11335)]