71384320

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:316

約数の個数: 144

約数和(自身を含む): 202503168

約数和(自身を除く): 131118848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 256, 257, 280, 310, 320, 434, 448, 496, 514, 560, 620, 640, 868, 896, 992, 1028, 1085, 1120, 1240, 1280, 1285, 1736, 1792, 1799, 1984, 2056, 2170, 2240, 2480, 2570, 3472, 3598, 3968, 4112, 4340, 4480, 4960, 5140, 6944, 7196, 7936, 7967, 8224, 8680, 8960, 8995, 9920, 10280, 13888, 14392, 15934, 16448, 17360, 17990, 19840, 20560, 27776, 28784, 31868, 32896, 34720, 35980, 39680, 39835, 41120, 55552, 55769, 57568, 63736, 65792, 69440, 71960, 79670, 82240, 111538, 115136, 127472, 138880, 143920, 159340, 164480, 223076, 230272, 254944, 277760, 278845, 287840, 318680, 328960, 446152, 460544, 509888, 557690, 575680, 637360, 892304, 1019776, 1115380, 1151360, 1274720, 1784608, 2039552, 2230760, 2302720, 2549440, 3569216, 4461520, 5098880, 7138432, 8923040, 10197760, 14276864, 17846080, 35692160, 71384320]

約数ペア:

[(1, 71384320), (2, 35692160), (4, 17846080), (5, 14276864), (7, 10197760), (8, 8923040), (10, 7138432), (14, 5098880), (16, 4461520), (20, 3569216), (28, 2549440), (31, 2302720), (32, 2230760), (35, 2039552), (40, 1784608), (56, 1274720), (62, 1151360), (64, 1115380), (70, 1019776), (80, 892304), (112, 637360), (124, 575680), (128, 557690), (140, 509888), (155, 460544), (160, 446152), (217, 328960), (224, 318680), (248, 287840), (256, 278845), (257, 277760), (280, 254944), (310, 230272), (320, 223076), (434, 164480), (448, 159340), (496, 143920), (514, 138880), (560, 127472), (620, 115136), (640, 111538), (868, 82240), (896, 79670), (992, 71960), (1028, 69440), (1085, 65792), (1120, 63736), (1240, 57568), (1280, 55769), (1285, 55552), (1736, 41120), (1792, 39835), (1799, 39680), (1984, 35980), (2056, 34720), (2170, 32896), (2240, 31868), (2480, 28784), (2570, 27776), (3472, 20560), (3598, 19840), (3968, 17990), (4112, 17360), (4340, 16448), (4480, 15934), (4960, 14392), (5140, 13888), (6944, 10280), (7196, 9920), (7936, 8995), (7967, 8960), (8224, 8680)]