318711920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{443}}^1$

素因数の和:519

約数の個数: 120

約数和(自身を含む): 822041136

約数和(自身を除く): 503329216

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 443, 460, 529, 680, 782, 886, 920, 1058, 1360, 1564, 1772, 1840, 1955, 2116, 2215, 2645, 3128, 3544, 3910, 4232, 4430, 5290, 6256, 7088, 7531, 7820, 8464, 8860, 8993, 10189, 10580, 15062, 15640, 17720, 17986, 20378, 21160, 30124, 31280, 35440, 35972, 37655, 40756, 42320, 44965, 50945, 60248, 71944, 75310, 81512, 89930, 101890, 120496, 143888, 150620, 163024, 173213, 179860, 203780, 234347, 301240, 346426, 359720, 407560, 468694, 602480, 692852, 719440, 815120, 866065, 937388, 1171735, 1385704, 1732130, 1874776, 2343470, 2771408, 3464260, 3749552, 3983899, 4686940, 6928520, 7967798, 9373880, 13857040, 15935596, 18747760, 19919495, 31871192, 39838990, 63742384, 79677980, 159355960, 318711920]

約数ペア:

[(1, 318711920), (2, 159355960), (4, 79677980), (5, 63742384), (8, 39838990), (10, 31871192), (16, 19919495), (17, 18747760), (20, 15935596), (23, 13857040), (34, 9373880), (40, 7967798), (46, 6928520), (68, 4686940), (80, 3983899), (85, 3749552), (92, 3464260), (115, 2771408), (136, 2343470), (170, 1874776), (184, 1732130), (230, 1385704), (272, 1171735), (340, 937388), (368, 866065), (391, 815120), (443, 719440), (460, 692852), (529, 602480), (680, 468694), (782, 407560), (886, 359720), (920, 346426), (1058, 301240), (1360, 234347), (1564, 203780), (1772, 179860), (1840, 173213), (1955, 163024), (2116, 150620), (2215, 143888), (2645, 120496), (3128, 101890), (3544, 89930), (3910, 81512), (4232, 75310), (4430, 71944), (5290, 60248), (6256, 50945), (7088, 44965), (7531, 42320), (7820, 40756), (8464, 37655), (8860, 35972), (8993, 35440), (10189, 31280), (10580, 30124), (15062, 21160), (15640, 20378), (17720, 17986)]