21651036320

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1\times {\mathrm{4457}}^1$

素因数の和:4882

約数の個数: 96

約数和(自身を含む): 51854635728

約数和(自身を除く): 30203599408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 313, 388, 485, 626, 776, 970, 1252, 1552, 1565, 1940, 2504, 3104, 3130, 3880, 4457, 5008, 6260, 7760, 8914, 10016, 12520, 15520, 17828, 22285, 25040, 30361, 35656, 44570, 50080, 60722, 71312, 89140, 121444, 142624, 151805, 178280, 242888, 303610, 356560, 432329, 485776, 607220, 713120, 864658, 971552, 1214440, 1395041, 1729316, 2161645, 2428880, 2790082, 3458632, 4323290, 4857760, 5580164, 6917264, 6975205, 8646580, 11160328, 13834528, 13950410, 17293160, 22320656, 27900820, 34586320, 44641312, 55801640, 69172640, 111603280, 135318977, 223206560, 270637954, 541275908, 676594885, 1082551816, 1353189770, 2165103632, 2706379540, 4330207264, 5412759080, 10825518160, 21651036320]

約数ペア:

[(1, 21651036320), (2, 10825518160), (4, 5412759080), (5, 4330207264), (8, 2706379540), (10, 2165103632), (16, 1353189770), (20, 1082551816), (32, 676594885), (40, 541275908), (80, 270637954), (97, 223206560), (160, 135318977), (194, 111603280), (313, 69172640), (388, 55801640), (485, 44641312), (626, 34586320), (776, 27900820), (970, 22320656), (1252, 17293160), (1552, 13950410), (1565, 13834528), (1940, 11160328), (2504, 8646580), (3104, 6975205), (3130, 6917264), (3880, 5580164), (4457, 4857760), (5008, 4323290), (6260, 3458632), (7760, 2790082), (8914, 2428880), (10016, 2161645), (12520, 1729316), (15520, 1395041), (17828, 1214440), (22285, 971552), (25040, 864658), (30361, 713120), (35656, 607220), (44570, 485776), (50080, 432329), (60722, 356560), (71312, 303610), (89140, 242888), (121444, 178280), (142624, 151805)]