18715680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:379

約数の個数: 144

約数和(自身を含む): 65631384

約数和(自身を除く): 46915704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 205, 240, 246, 288, 317, 328, 360, 369, 410, 480, 492, 615, 634, 656, 720, 738, 820, 951, 984, 1230, 1268, 1312, 1440, 1476, 1585, 1640, 1845, 1902, 1968, 2460, 2536, 2853, 2952, 3170, 3280, 3690, 3804, 3936, 4755, 4920, 5072, 5706, 5904, 6340, 6560, 7380, 7608, 9510, 9840, 10144, 11412, 11808, 12680, 12997, 14265, 14760, 15216, 19020, 19680, 22824, 25360, 25994, 28530, 29520, 30432, 38040, 38991, 45648, 50720, 51988, 57060, 59040, 64985, 76080, 77982, 91296, 103976, 114120, 116973, 129970, 152160, 155964, 194955, 207952, 228240, 233946, 259940, 311928, 389910, 415904, 456480, 467892, 519880, 584865, 623856, 779820, 935784, 1039760, 1169730, 1247712, 1559640, 1871568, 2079520, 2339460, 3119280, 3743136, 4678920, 6238560, 9357840, 18715680]

約数ペア:

[(1, 18715680), (2, 9357840), (3, 6238560), (4, 4678920), (5, 3743136), (6, 3119280), (8, 2339460), (9, 2079520), (10, 1871568), (12, 1559640), (15, 1247712), (16, 1169730), (18, 1039760), (20, 935784), (24, 779820), (30, 623856), (32, 584865), (36, 519880), (40, 467892), (41, 456480), (45, 415904), (48, 389910), (60, 311928), (72, 259940), (80, 233946), (82, 228240), (90, 207952), (96, 194955), (120, 155964), (123, 152160), (144, 129970), (160, 116973), (164, 114120), (180, 103976), (205, 91296), (240, 77982), (246, 76080), (288, 64985), (317, 59040), (328, 57060), (360, 51988), (369, 50720), (410, 45648), (480, 38991), (492, 38040), (615, 30432), (634, 29520), (656, 28530), (720, 25994), (738, 25360), (820, 22824), (951, 19680), (984, 19020), (1230, 15216), (1268, 14760), (1312, 14265), (1440, 12997), (1476, 12680), (1585, 11808), (1640, 11412), (1845, 10144), (1902, 9840), (1968, 9510), (2460, 7608), (2536, 7380), (2853, 6560), (2952, 6340), (3170, 5904), (3280, 5706), (3690, 5072), (3804, 4920), (3936, 4755)]