1278439650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{647}}^1\times {\mathrm{4391}}^1$

素因数の和:5056

約数の個数: 72

約数和(自身を含む): 3440833344

約数和(自身を除く): 2162393694

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 225, 450, 647, 1294, 1941, 3235, 3882, 4391, 5823, 6470, 8782, 9705, 11646, 13173, 16175, 19410, 21955, 26346, 29115, 32350, 39519, 43910, 48525, 58230, 65865, 79038, 97050, 109775, 131730, 145575, 197595, 219550, 291150, 329325, 395190, 658650, 987975, 1975950, 2840977, 5681954, 8522931, 14204885, 17045862, 25568793, 28409770, 42614655, 51137586, 71024425, 85229310, 127843965, 142048850, 213073275, 255687930, 426146550, 639219825, 1278439650]

約数ペア:

[(1, 1278439650), (2, 639219825), (3, 426146550), (5, 255687930), (6, 213073275), (9, 142048850), (10, 127843965), (15, 85229310), (18, 71024425), (25, 51137586), (30, 42614655), (45, 28409770), (50, 25568793), (75, 17045862), (90, 14204885), (150, 8522931), (225, 5681954), (450, 2840977), (647, 1975950), (1294, 987975), (1941, 658650), (3235, 395190), (3882, 329325), (4391, 291150), (5823, 219550), (6470, 197595), (8782, 145575), (9705, 131730), (11646, 109775), (13173, 97050), (16175, 79038), (19410, 65865), (21955, 58230), (26346, 48525), (29115, 43910), (32350, 39519)]