249845120

素因数分解:

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

素因数の和:321

約数の個数: 192

約数和(自身を含む): 720005760

約数和(自身を除く): 470160640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 128, 140, 155, 160, 196, 217, 224, 245, 248, 257, 280, 310, 320, 392, 434, 448, 490, 496, 514, 560, 620, 640, 784, 868, 896, 980, 992, 1028, 1085, 1120, 1240, 1285, 1519, 1568, 1736, 1799, 1960, 1984, 2056, 2170, 2240, 2480, 2570, 3038, 3136, 3472, 3598, 3920, 3968, 4112, 4340, 4480, 4960, 5140, 6076, 6272, 6944, 7196, 7595, 7840, 7967, 8224, 8680, 8995, 9920, 10280, 12152, 12593, 13888, 14392, 15190, 15680, 15934, 16448, 17360, 17990, 19840, 20560, 24304, 25186, 27776, 28784, 30380, 31360, 31868, 32896, 34720, 35980, 39835, 41120, 48608, 50372, 55769, 57568, 60760, 62965, 63736, 69440, 71960, 79670, 82240, 97216, 100744, 111538, 115136, 121520, 125930, 127472, 138880, 143920, 159340, 164480, 194432, 201488, 223076, 230272, 243040, 251860, 254944, 278845, 287840, 318680, 390383, 402976, 446152, 486080, 503720, 509888, 557690, 575680, 637360, 780766, 805952, 892304, 972160, 1007440, 1019776, 1115380, 1151360, 1274720, 1561532, 1611904, 1784608, 1951915, 2014880, 2230760, 2549440, 3123064, 3569216, 3903830, 4029760, 4461520, 5098880, 6246128, 7138432, 7807660, 8059520, 8923040, 12492256, 15615320, 17846080, 24984512, 31230640, 35692160, 49969024, 62461280, 124922560, 249845120]

約数ペア:

[(1, 249845120), (2, 124922560), (4, 62461280), (5, 49969024), (7, 35692160), (8, 31230640), (10, 24984512), (14, 17846080), (16, 15615320), (20, 12492256), (28, 8923040), (31, 8059520), (32, 7807660), (35, 7138432), (40, 6246128), (49, 5098880), (56, 4461520), (62, 4029760), (64, 3903830), (70, 3569216), (80, 3123064), (98, 2549440), (112, 2230760), (124, 2014880), (128, 1951915), (140, 1784608), (155, 1611904), (160, 1561532), (196, 1274720), (217, 1151360), (224, 1115380), (245, 1019776), (248, 1007440), (257, 972160), (280, 892304), (310, 805952), (320, 780766), (392, 637360), (434, 575680), (448, 557690), (490, 509888), (496, 503720), (514, 486080), (560, 446152), (620, 402976), (640, 390383), (784, 318680), (868, 287840), (896, 278845), (980, 254944), (992, 251860), (1028, 243040), (1085, 230272), (1120, 223076), (1240, 201488), (1285, 194432), (1519, 164480), (1568, 159340), (1736, 143920), (1799, 138880), (1960, 127472), (1984, 125930), (2056, 121520), (2170, 115136), (2240, 111538), (2480, 100744), (2570, 97216), (3038, 82240), (3136, 79670), (3472, 71960), (3598, 69440), (3920, 63736), (3968, 62965), (4112, 60760), (4340, 57568), (4480, 55769), (4960, 50372), (5140, 48608), (6076, 41120), (6272, 39835), (6944, 35980), (7196, 34720), (7595, 32896), (7840, 31868), (7967, 31360), (8224, 30380), (8680, 28784), (8995, 27776), (9920, 25186), (10280, 24304), (12152, 20560), (12593, 19840), (13888, 17990), (14392, 17360), (15190, 16448), (15680, 15934)]