871650560

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2060

約数の個数: 144

約数和(自身を含む): 2352333312

約数和(自身を除く): 1480682752

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 256, 310, 320, 341, 352, 440, 496, 620, 640, 682, 704, 880, 992, 1240, 1280, 1364, 1408, 1705, 1760, 1984, 1997, 2480, 2728, 2816, 3410, 3520, 3968, 3994, 4960, 5456, 6820, 7040, 7936, 7988, 9920, 9985, 10912, 13640, 14080, 15976, 19840, 19970, 21824, 21967, 27280, 31952, 39680, 39940, 43648, 43934, 54560, 61907, 63904, 79880, 87296, 87868, 109120, 109835, 123814, 127808, 159760, 175736, 218240, 219670, 247628, 255616, 309535, 319520, 351472, 436480, 439340, 495256, 511232, 619070, 639040, 680977, 702944, 878680, 990512, 1238140, 1278080, 1361954, 1405888, 1757360, 1981024, 2476280, 2556160, 2723908, 2811776, 3404885, 3514720, 3962048, 4952560, 5447816, 5623552, 6809770, 7029440, 7924096, 9905120, 10895632, 13619540, 14058880, 15848192, 19810240, 21791264, 27239080, 28117760, 39620480, 43582528, 54478160, 79240960, 87165056, 108956320, 174330112, 217912640, 435825280, 871650560]

約数ペア:

[(1, 871650560), (2, 435825280), (4, 217912640), (5, 174330112), (8, 108956320), (10, 87165056), (11, 79240960), (16, 54478160), (20, 43582528), (22, 39620480), (31, 28117760), (32, 27239080), (40, 21791264), (44, 19810240), (55, 15848192), (62, 14058880), (64, 13619540), (80, 10895632), (88, 9905120), (110, 7924096), (124, 7029440), (128, 6809770), (155, 5623552), (160, 5447816), (176, 4952560), (220, 3962048), (248, 3514720), (256, 3404885), (310, 2811776), (320, 2723908), (341, 2556160), (352, 2476280), (440, 1981024), (496, 1757360), (620, 1405888), (640, 1361954), (682, 1278080), (704, 1238140), (880, 990512), (992, 878680), (1240, 702944), (1280, 680977), (1364, 639040), (1408, 619070), (1705, 511232), (1760, 495256), (1984, 439340), (1997, 436480), (2480, 351472), (2728, 319520), (2816, 309535), (3410, 255616), (3520, 247628), (3968, 219670), (3994, 218240), (4960, 175736), (5456, 159760), (6820, 127808), (7040, 123814), (7936, 109835), (7988, 109120), (9920, 87868), (9985, 87296), (10912, 79880), (13640, 63904), (14080, 61907), (15976, 54560), (19840, 43934), (19970, 43648), (21824, 39940), (21967, 39680), (27280, 31952)]