20122868920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{14551}}^1$

素因数の和:15029

約数の個数: 128

約数和(自身を含む): 56578176000

約数和(自身を除く): 36455307080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 449, 616, 770, 898, 1540, 1796, 2245, 3080, 3143, 3592, 4490, 4939, 6286, 8980, 9878, 12572, 14551, 15715, 17960, 19756, 24695, 25144, 29102, 31430, 34573, 39512, 49390, 58204, 62860, 69146, 72755, 98780, 101857, 116408, 125720, 138292, 145510, 160061, 172865, 197560, 203714, 276584, 291020, 320122, 345730, 407428, 509285, 582040, 640244, 691460, 800305, 814856, 1018570, 1120427, 1280488, 1382920, 1600610, 2037140, 2240854, 3201220, 4074280, 4481708, 5602135, 6402440, 6533399, 8963416, 11204270, 13066798, 22408540, 26133596, 32666995, 44817080, 45733793, 52267192, 65333990, 71867389, 91467586, 130667980, 143734778, 182935172, 228668965, 261335960, 287469556, 359336945, 365870344, 457337930, 503071723, 574939112, 718673890, 914675860, 1006143446, 1437347780, 1829351720, 2012286892, 2515358615, 2874695560, 4024573784, 5030717230, 10061434460, 20122868920]

約数ペア:

[(1, 20122868920), (2, 10061434460), (4, 5030717230), (5, 4024573784), (7, 2874695560), (8, 2515358615), (10, 2012286892), (11, 1829351720), (14, 1437347780), (20, 1006143446), (22, 914675860), (28, 718673890), (35, 574939112), (40, 503071723), (44, 457337930), (55, 365870344), (56, 359336945), (70, 287469556), (77, 261335960), (88, 228668965), (110, 182935172), (140, 143734778), (154, 130667980), (220, 91467586), (280, 71867389), (308, 65333990), (385, 52267192), (440, 45733793), (449, 44817080), (616, 32666995), (770, 26133596), (898, 22408540), (1540, 13066798), (1796, 11204270), (2245, 8963416), (3080, 6533399), (3143, 6402440), (3592, 5602135), (4490, 4481708), (4939, 4074280), (6286, 3201220), (8980, 2240854), (9878, 2037140), (12572, 1600610), (14551, 1382920), (15715, 1280488), (17960, 1120427), (19756, 1018570), (24695, 814856), (25144, 800305), (29102, 691460), (31430, 640244), (34573, 582040), (39512, 509285), (49390, 407428), (58204, 345730), (62860, 320122), (69146, 291020), (72755, 276584), (98780, 203714), (101857, 197560), (116408, 172865), (125720, 160061), (138292, 145510)]