278317890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:501

約数の個数: 128

約数和(自身を含む): 787968000

約数和(自身を除く): 509650110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 227, 239, 270, 285, 342, 454, 478, 513, 570, 681, 717, 855, 1026, 1135, 1195, 1362, 1434, 1710, 2043, 2151, 2270, 2390, 2565, 3405, 3585, 4086, 4302, 4313, 4541, 5130, 6129, 6453, 6810, 7170, 8626, 9082, 10215, 10755, 12258, 12906, 12939, 13623, 20430, 21510, 21565, 22705, 25878, 27246, 30645, 32265, 38817, 40869, 43130, 45410, 54253, 61290, 64530, 64695, 68115, 77634, 81738, 108506, 116451, 122607, 129390, 136230, 162759, 194085, 204345, 232902, 245214, 271265, 325518, 388170, 408690, 488277, 542530, 582255, 613035, 813795, 976554, 1030807, 1164510, 1226070, 1464831, 1627590, 2061614, 2441385, 2929662, 3092421, 4882770, 5154035, 6184842, 7324155, 9277263, 10308070, 14648310, 15462105, 18554526, 27831789, 30924210, 46386315, 55663578, 92772630, 139158945, 278317890]

約数ペア:

[(1, 278317890), (2, 139158945), (3, 92772630), (5, 55663578), (6, 46386315), (9, 30924210), (10, 27831789), (15, 18554526), (18, 15462105), (19, 14648310), (27, 10308070), (30, 9277263), (38, 7324155), (45, 6184842), (54, 5154035), (57, 4882770), (90, 3092421), (95, 2929662), (114, 2441385), (135, 2061614), (171, 1627590), (190, 1464831), (227, 1226070), (239, 1164510), (270, 1030807), (285, 976554), (342, 813795), (454, 613035), (478, 582255), (513, 542530), (570, 488277), (681, 408690), (717, 388170), (855, 325518), (1026, 271265), (1135, 245214), (1195, 232902), (1362, 204345), (1434, 194085), (1710, 162759), (2043, 136230), (2151, 129390), (2270, 122607), (2390, 116451), (2565, 108506), (3405, 81738), (3585, 77634), (4086, 68115), (4302, 64695), (4313, 64530), (4541, 61290), (5130, 54253), (6129, 45410), (6453, 43130), (6810, 40869), (7170, 38817), (8626, 32265), (9082, 30645), (10215, 27246), (10755, 25878), (12258, 22705), (12906, 21565), (12939, 21510), (13623, 20430)]