20976690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:184

約数の個数: 128

約数和(自身を含む): 62042112

約数和(自身を除く): 41065422

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 43, 46, 69, 70, 86, 101, 105, 115, 129, 138, 161, 202, 210, 215, 230, 258, 301, 303, 322, 345, 430, 483, 505, 602, 606, 645, 690, 707, 805, 903, 966, 989, 1010, 1290, 1414, 1505, 1515, 1610, 1806, 1978, 2121, 2323, 2415, 2967, 3010, 3030, 3535, 4242, 4343, 4515, 4646, 4830, 4945, 5934, 6923, 6969, 7070, 8686, 9030, 9890, 10605, 11615, 13029, 13846, 13938, 14835, 16261, 20769, 21210, 21715, 23230, 26058, 29670, 30401, 32522, 34615, 34845, 41538, 43430, 48783, 60802, 65145, 69230, 69690, 81305, 91203, 97566, 99889, 103845, 130290, 152005, 162610, 182406, 199778, 207690, 243915, 299667, 304010, 456015, 487830, 499445, 599334, 699223, 912030, 998890, 1398446, 1498335, 2097669, 2996670, 3496115, 4195338, 6992230, 10488345, 20976690]

約数ペア:

[(1, 20976690), (2, 10488345), (3, 6992230), (5, 4195338), (6, 3496115), (7, 2996670), (10, 2097669), (14, 1498335), (15, 1398446), (21, 998890), (23, 912030), (30, 699223), (35, 599334), (42, 499445), (43, 487830), (46, 456015), (69, 304010), (70, 299667), (86, 243915), (101, 207690), (105, 199778), (115, 182406), (129, 162610), (138, 152005), (161, 130290), (202, 103845), (210, 99889), (215, 97566), (230, 91203), (258, 81305), (301, 69690), (303, 69230), (322, 65145), (345, 60802), (430, 48783), (483, 43430), (505, 41538), (602, 34845), (606, 34615), (645, 32522), (690, 30401), (707, 29670), (805, 26058), (903, 23230), (966, 21715), (989, 21210), (1010, 20769), (1290, 16261), (1414, 14835), (1505, 13938), (1515, 13846), (1610, 13029), (1806, 11615), (1978, 10605), (2121, 9890), (2323, 9030), (2415, 8686), (2967, 7070), (3010, 6969), (3030, 6923), (3535, 5934), (4242, 4945), (4343, 4830), (4515, 4646)]