220888640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3181}}^1$

素因数の和:3236

約数の個数: 112

約数和(自身を含む): 620719104

約数和(自身を除く): 399830464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 868, 992, 1085, 1120, 1240, 1736, 1984, 2170, 2240, 2480, 3181, 3472, 4340, 4960, 6362, 6944, 8680, 9920, 12724, 13888, 15905, 17360, 22267, 25448, 31810, 34720, 44534, 50896, 63620, 69440, 89068, 98611, 101792, 111335, 127240, 178136, 197222, 203584, 222670, 254480, 356272, 394444, 445340, 493055, 508960, 690277, 712544, 788888, 890680, 986110, 1017920, 1380554, 1425088, 1577776, 1781360, 1972220, 2761108, 3155552, 3451385, 3562720, 3944440, 5522216, 6311104, 6902770, 7125440, 7888880, 11044432, 13805540, 15777760, 22088864, 27611080, 31555520, 44177728, 55222160, 110444320, 220888640]

約数ペア:

[(1, 220888640), (2, 110444320), (4, 55222160), (5, 44177728), (7, 31555520), (8, 27611080), (10, 22088864), (14, 15777760), (16, 13805540), (20, 11044432), (28, 7888880), (31, 7125440), (32, 6902770), (35, 6311104), (40, 5522216), (56, 3944440), (62, 3562720), (64, 3451385), (70, 3155552), (80, 2761108), (112, 1972220), (124, 1781360), (140, 1577776), (155, 1425088), (160, 1380554), (217, 1017920), (224, 986110), (248, 890680), (280, 788888), (310, 712544), (320, 690277), (434, 508960), (448, 493055), (496, 445340), (560, 394444), (620, 356272), (868, 254480), (992, 222670), (1085, 203584), (1120, 197222), (1240, 178136), (1736, 127240), (1984, 111335), (2170, 101792), (2240, 98611), (2480, 89068), (3181, 69440), (3472, 63620), (4340, 50896), (4960, 44534), (6362, 34720), (6944, 31810), (8680, 25448), (9920, 22267), (12724, 17360), (13888, 15905)]