278420220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2333}}^1$

素因数の和:2381

約数の個数: 192

約数和(自身を含む): 988122240

約数和(自身を除く): 709702020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 27, 30, 34, 36, 39, 45, 51, 52, 54, 60, 65, 68, 78, 85, 90, 102, 108, 117, 130, 135, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 270, 306, 340, 351, 390, 442, 459, 468, 510, 540, 585, 612, 663, 702, 765, 780, 884, 918, 1020, 1105, 1170, 1326, 1404, 1530, 1755, 1836, 1989, 2210, 2295, 2333, 2340, 2652, 3060, 3315, 3510, 3978, 4420, 4590, 4666, 5967, 6630, 6999, 7020, 7956, 9180, 9332, 9945, 11665, 11934, 13260, 13998, 19890, 20997, 23330, 23868, 27996, 29835, 30329, 34995, 39661, 39780, 41994, 46660, 59670, 60658, 62991, 69990, 79322, 83988, 90987, 104985, 118983, 119340, 121316, 125982, 139980, 151645, 158644, 181974, 198305, 209970, 237966, 251964, 272961, 303290, 314955, 356949, 363948, 396610, 419940, 454935, 475932, 515593, 545922, 594915, 606580, 629910, 713898, 793220, 818883, 909870, 1031186, 1070847, 1091844, 1189830, 1259820, 1364805, 1427796, 1546779, 1637766, 1784745, 1819740, 2062372, 2141694, 2379660, 2577965, 2729610, 3093558, 3275532, 3569490, 4094415, 4283388, 4640337, 5155930, 5354235, 5459220, 6187116, 7138980, 7733895, 8188830, 9280674, 10311860, 10708470, 13921011, 15467790, 16377660, 18561348, 21416940, 23201685, 27842022, 30935580, 46403370, 55684044, 69605055, 92806740, 139210110, 278420220]

約数ペア:

[(1, 278420220), (2, 139210110), (3, 92806740), (4, 69605055), (5, 55684044), (6, 46403370), (9, 30935580), (10, 27842022), (12, 23201685), (13, 21416940), (15, 18561348), (17, 16377660), (18, 15467790), (20, 13921011), (26, 10708470), (27, 10311860), (30, 9280674), (34, 8188830), (36, 7733895), (39, 7138980), (45, 6187116), (51, 5459220), (52, 5354235), (54, 5155930), (60, 4640337), (65, 4283388), (68, 4094415), (78, 3569490), (85, 3275532), (90, 3093558), (102, 2729610), (108, 2577965), (117, 2379660), (130, 2141694), (135, 2062372), (153, 1819740), (156, 1784745), (170, 1637766), (180, 1546779), (195, 1427796), (204, 1364805), (221, 1259820), (234, 1189830), (255, 1091844), (260, 1070847), (270, 1031186), (306, 909870), (340, 818883), (351, 793220), (390, 713898), (442, 629910), (459, 606580), (468, 594915), (510, 545922), (540, 515593), (585, 475932), (612, 454935), (663, 419940), (702, 396610), (765, 363948), (780, 356949), (884, 314955), (918, 303290), (1020, 272961), (1105, 251964), (1170, 237966), (1326, 209970), (1404, 198305), (1530, 181974), (1755, 158644), (1836, 151645), (1989, 139980), (2210, 125982), (2295, 121316), (2333, 119340), (2340, 118983), (2652, 104985), (3060, 90987), (3315, 83988), (3510, 79322), (3978, 69990), (4420, 62991), (4590, 60658), (4666, 59670), (5967, 46660), (6630, 41994), (6999, 39780), (7020, 39661), (7956, 34995), (9180, 30329), (9332, 29835), (9945, 27996), (11665, 23868), (11934, 23330), (13260, 20997), (13998, 19890)]