28490028

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 81865728

約数和(自身を除く): 53375700

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 71, 84, 102, 119, 142, 204, 213, 238, 281, 284, 357, 426, 476, 497, 562, 714, 843, 852, 994, 1124, 1207, 1428, 1491, 1686, 1967, 1988, 2414, 2982, 3372, 3621, 3934, 4777, 4828, 5901, 5964, 7242, 7868, 8449, 9554, 11802, 14331, 14484, 16898, 19108, 19951, 23604, 25347, 28662, 33439, 33796, 39902, 50694, 57324, 59853, 66878, 79804, 100317, 101388, 119706, 133756, 139657, 200634, 239412, 279314, 339167, 401268, 418971, 558628, 678334, 837942, 1017501, 1356668, 1675884, 2035002, 2374169, 4070004, 4748338, 7122507, 9496676, 14245014, 28490028]

約数ペア:

[(1, 28490028), (2, 14245014), (3, 9496676), (4, 7122507), (6, 4748338), (7, 4070004), (12, 2374169), (14, 2035002), (17, 1675884), (21, 1356668), (28, 1017501), (34, 837942), (42, 678334), (51, 558628), (68, 418971), (71, 401268), (84, 339167), (102, 279314), (119, 239412), (142, 200634), (204, 139657), (213, 133756), (238, 119706), (281, 101388), (284, 100317), (357, 79804), (426, 66878), (476, 59853), (497, 57324), (562, 50694), (714, 39902), (843, 33796), (852, 33439), (994, 28662), (1124, 25347), (1207, 23604), (1428, 19951), (1491, 19108), (1686, 16898), (1967, 14484), (1988, 14331), (2414, 11802), (2982, 9554), (3372, 8449), (3621, 7868), (3934, 7242), (4777, 5964), (4828, 5901)]