320861520

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{21221}}^1$

素因数の和:21250

約数の個数: 160

約数和(自身を含む): 1263133440

約数和(自身を除く): 942271920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 21221, 42442, 63663, 84884, 106105, 127326, 148547, 169768, 190989, 212210, 254652, 297094, 318315, 339536, 381978, 424420, 445641, 509304, 572967, 594188, 636630, 742735, 763956, 848840, 891282, 954945, 1018608, 1145934, 1188376, 1273260, 1336923, 1485470, 1527912, 1697680, 1782564, 1909890, 2228205, 2291868, 2376752, 2546520, 2673846, 2864835, 2970940, 3055824, 3565128, 3819780, 4010769, 4456410, 4583736, 5093040, 5347692, 5729670, 5941880, 6684615, 7130256, 7639560, 8021538, 8912820, 9167472, 10695384, 11459340, 11883760, 13369230, 15279120, 16043076, 17825640, 20053845, 21390768, 22918680, 26738460, 32086152, 35651280, 40107690, 45837360, 53476920, 64172304, 80215380, 106953840, 160430760, 320861520]

約数ペア:

[(1, 320861520), (2, 160430760), (3, 106953840), (4, 80215380), (5, 64172304), (6, 53476920), (7, 45837360), (8, 40107690), (9, 35651280), (10, 32086152), (12, 26738460), (14, 22918680), (15, 21390768), (16, 20053845), (18, 17825640), (20, 16043076), (21, 15279120), (24, 13369230), (27, 11883760), (28, 11459340), (30, 10695384), (35, 9167472), (36, 8912820), (40, 8021538), (42, 7639560), (45, 7130256), (48, 6684615), (54, 5941880), (56, 5729670), (60, 5347692), (63, 5093040), (70, 4583736), (72, 4456410), (80, 4010769), (84, 3819780), (90, 3565128), (105, 3055824), (108, 2970940), (112, 2864835), (120, 2673846), (126, 2546520), (135, 2376752), (140, 2291868), (144, 2228205), (168, 1909890), (180, 1782564), (189, 1697680), (210, 1527912), (216, 1485470), (240, 1336923), (252, 1273260), (270, 1188376), (280, 1145934), (315, 1018608), (336, 954945), (360, 891282), (378, 848840), (420, 763956), (432, 742735), (504, 636630), (540, 594188), (560, 572967), (630, 509304), (720, 445641), (756, 424420), (840, 381978), (945, 339536), (1008, 318315), (1080, 297094), (1260, 254652), (1512, 212210), (1680, 190989), (1890, 169768), (2160, 148547), (2520, 127326), (3024, 106105), (3780, 84884), (5040, 63663), (7560, 42442), (15120, 21221)]