20999250

素因数分解:

$2^1\times 3^4\times 5^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:107

約数の個数: 160

約数和(自身を含む): 63196848

約数和(自身を除く): 42197598

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 25, 27, 30, 34, 45, 50, 51, 54, 61, 75, 81, 85, 90, 102, 122, 125, 135, 150, 153, 162, 170, 183, 225, 250, 255, 270, 305, 306, 366, 375, 405, 425, 450, 459, 510, 549, 610, 675, 750, 765, 810, 850, 915, 918, 1037, 1098, 1125, 1275, 1350, 1377, 1525, 1530, 1647, 1830, 2025, 2074, 2125, 2250, 2295, 2550, 2745, 2754, 3050, 3111, 3294, 3375, 3825, 4050, 4250, 4575, 4590, 4941, 5185, 5490, 6222, 6375, 6750, 6885, 7625, 7650, 8235, 9150, 9333, 9882, 10125, 10370, 11475, 12750, 13725, 13770, 15250, 15555, 16470, 18666, 19125, 20250, 22875, 22950, 24705, 25925, 27450, 27999, 31110, 34425, 38250, 41175, 45750, 46665, 49410, 51850, 55998, 57375, 68625, 68850, 77775, 82350, 83997, 93330, 114750, 123525, 129625, 137250, 139995, 155550, 167994, 172125, 205875, 233325, 247050, 259250, 279990, 344250, 388875, 411750, 419985, 466650, 617625, 699975, 777750, 839970, 1166625, 1235250, 1399950, 2099925, 2333250, 3499875, 4199850, 6999750, 10499625, 20999250]

約数ペア:

[(1, 20999250), (2, 10499625), (3, 6999750), (5, 4199850), (6, 3499875), (9, 2333250), (10, 2099925), (15, 1399950), (17, 1235250), (18, 1166625), (25, 839970), (27, 777750), (30, 699975), (34, 617625), (45, 466650), (50, 419985), (51, 411750), (54, 388875), (61, 344250), (75, 279990), (81, 259250), (85, 247050), (90, 233325), (102, 205875), (122, 172125), (125, 167994), (135, 155550), (150, 139995), (153, 137250), (162, 129625), (170, 123525), (183, 114750), (225, 93330), (250, 83997), (255, 82350), (270, 77775), (305, 68850), (306, 68625), (366, 57375), (375, 55998), (405, 51850), (425, 49410), (450, 46665), (459, 45750), (510, 41175), (549, 38250), (610, 34425), (675, 31110), (750, 27999), (765, 27450), (810, 25925), (850, 24705), (915, 22950), (918, 22875), (1037, 20250), (1098, 19125), (1125, 18666), (1275, 16470), (1350, 15555), (1377, 15250), (1525, 13770), (1530, 13725), (1647, 12750), (1830, 11475), (2025, 10370), (2074, 10125), (2125, 9882), (2250, 9333), (2295, 9150), (2550, 8235), (2745, 7650), (2754, 7625), (3050, 6885), (3111, 6750), (3294, 6375), (3375, 6222), (3825, 5490), (4050, 5185), (4250, 4941), (4575, 4590)]