20756806400

素因数分解:

$2^8\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{9511}}^1$

素因数の和:9579

約数の個数: 216

約数和(自身を含む): 57860963328

約数和(自身を除く): 37104156928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 31, 32, 40, 44, 50, 55, 62, 64, 80, 88, 100, 110, 124, 128, 155, 160, 176, 200, 220, 248, 256, 275, 310, 320, 341, 352, 400, 440, 496, 550, 620, 640, 682, 704, 775, 800, 880, 992, 1100, 1240, 1280, 1364, 1408, 1550, 1600, 1705, 1760, 1984, 2200, 2480, 2728, 2816, 3100, 3200, 3410, 3520, 3968, 4400, 4960, 5456, 6200, 6400, 6820, 7040, 7936, 8525, 8800, 9511, 9920, 10912, 12400, 13640, 14080, 17050, 17600, 19022, 19840, 21824, 24800, 27280, 34100, 35200, 38044, 39680, 43648, 47555, 49600, 54560, 68200, 70400, 76088, 87296, 95110, 99200, 104621, 109120, 136400, 152176, 190220, 198400, 209242, 218240, 237775, 272800, 294841, 304352, 380440, 418484, 436480, 475550, 523105, 545600, 589682, 608704, 760880, 836968, 951100, 1046210, 1091200, 1179364, 1217408, 1474205, 1521760, 1673936, 1902200, 2092420, 2182400, 2358728, 2434816, 2615525, 2948410, 3043520, 3243251, 3347872, 3804400, 4184840, 4717456, 5231050, 5896820, 6087040, 6486502, 6695744, 7371025, 7608800, 8369680, 9434912, 10462100, 11793640, 12174080, 12973004, 13391488, 14742050, 15217600, 16216255, 16739360, 18869824, 20924200, 23587280, 25946008, 26782976, 29484100, 30435200, 32432510, 33478720, 37739648, 41848400, 47174560, 51892016, 58968200, 60870400, 64865020, 66957440, 75479296, 81081275, 83696800, 94349120, 103784032, 117936400, 129730040, 133914880, 162162550, 167393600, 188698240, 207568064, 235872800, 259460080, 324325100, 334787200, 377396480, 415136128, 471745600, 518920160, 648650200, 669574400, 830272256, 943491200, 1037840320, 1297300400, 1886982400, 2075680640, 2594600800, 4151361280, 5189201600, 10378403200, 20756806400]

約数ペア:

[(1, 20756806400), (2, 10378403200), (4, 5189201600), (5, 4151361280), (8, 2594600800), (10, 2075680640), (11, 1886982400), (16, 1297300400), (20, 1037840320), (22, 943491200), (25, 830272256), (31, 669574400), (32, 648650200), (40, 518920160), (44, 471745600), (50, 415136128), (55, 377396480), (62, 334787200), (64, 324325100), (80, 259460080), (88, 235872800), (100, 207568064), (110, 188698240), (124, 167393600), (128, 162162550), (155, 133914880), (160, 129730040), (176, 117936400), (200, 103784032), (220, 94349120), (248, 83696800), (256, 81081275), (275, 75479296), (310, 66957440), (320, 64865020), (341, 60870400), (352, 58968200), (400, 51892016), (440, 47174560), (496, 41848400), (550, 37739648), (620, 33478720), (640, 32432510), (682, 30435200), (704, 29484100), (775, 26782976), (800, 25946008), (880, 23587280), (992, 20924200), (1100, 18869824), (1240, 16739360), (1280, 16216255), (1364, 15217600), (1408, 14742050), (1550, 13391488), (1600, 12973004), (1705, 12174080), (1760, 11793640), (1984, 10462100), (2200, 9434912), (2480, 8369680), (2728, 7608800), (2816, 7371025), (3100, 6695744), (3200, 6486502), (3410, 6087040), (3520, 5896820), (3968, 5231050), (4400, 4717456), (4960, 4184840), (5456, 3804400), (6200, 3347872), (6400, 3243251), (6820, 3043520), (7040, 2948410), (7936, 2615525), (8525, 2434816), (8800, 2358728), (9511, 2182400), (9920, 2092420), (10912, 1902200), (12400, 1673936), (13640, 1521760), (14080, 1474205), (17050, 1217408), (17600, 1179364), (19022, 1091200), (19840, 1046210), (21824, 951100), (24800, 836968), (27280, 760880), (34100, 608704), (35200, 589682), (38044, 545600), (39680, 523105), (43648, 475550), (47555, 436480), (49600, 418484), (54560, 380440), (68200, 304352), (70400, 294841), (76088, 272800), (87296, 237775), (95110, 218240), (99200, 209242), (104621, 198400), (109120, 190220), (136400, 152176)]