28009740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:128

約数の個数: 144

約数和(自身を含む): 90768384

約数和(自身を除く): 62758644

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 31, 33, 37, 44, 55, 60, 62, 66, 74, 93, 110, 111, 124, 132, 148, 155, 165, 185, 186, 220, 222, 310, 330, 341, 370, 372, 407, 444, 465, 555, 620, 660, 682, 740, 814, 930, 1023, 1110, 1147, 1221, 1364, 1369, 1628, 1705, 1860, 2035, 2046, 2220, 2294, 2442, 2738, 3410, 3441, 4070, 4092, 4107, 4588, 4884, 5115, 5476, 5735, 6105, 6820, 6845, 6882, 8140, 8214, 10230, 11470, 12210, 12617, 13690, 13764, 15059, 16428, 17205, 20460, 20535, 22940, 24420, 25234, 27380, 30118, 34410, 37851, 41070, 42439, 45177, 50468, 60236, 63085, 68820, 75295, 75702, 82140, 84878, 90354, 126170, 127317, 150590, 151404, 169756, 180708, 189255, 212195, 225885, 252340, 254634, 301180, 378510, 424390, 451770, 466829, 509268, 636585, 757020, 848780, 903540, 933658, 1273170, 1400487, 1867316, 2334145, 2546340, 2800974, 4668290, 5601948, 7002435, 9336580, 14004870, 28009740]

約数ペア:

[(1, 28009740), (2, 14004870), (3, 9336580), (4, 7002435), (5, 5601948), (6, 4668290), (10, 2800974), (11, 2546340), (12, 2334145), (15, 1867316), (20, 1400487), (22, 1273170), (30, 933658), (31, 903540), (33, 848780), (37, 757020), (44, 636585), (55, 509268), (60, 466829), (62, 451770), (66, 424390), (74, 378510), (93, 301180), (110, 254634), (111, 252340), (124, 225885), (132, 212195), (148, 189255), (155, 180708), (165, 169756), (185, 151404), (186, 150590), (220, 127317), (222, 126170), (310, 90354), (330, 84878), (341, 82140), (370, 75702), (372, 75295), (407, 68820), (444, 63085), (465, 60236), (555, 50468), (620, 45177), (660, 42439), (682, 41070), (740, 37851), (814, 34410), (930, 30118), (1023, 27380), (1110, 25234), (1147, 24420), (1221, 22940), (1364, 20535), (1369, 20460), (1628, 17205), (1705, 16428), (1860, 15059), (2035, 13764), (2046, 13690), (2220, 12617), (2294, 12210), (2442, 11470), (2738, 10230), (3410, 8214), (3441, 8140), (4070, 6882), (4092, 6845), (4107, 6820), (4588, 6105), (4884, 5735), (5115, 5476)]