240837760

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:310

約数の個数: 128

約数和(自身を含む): 607104000

約数和(自身を除く): 366266240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 61, 62, 64, 80, 122, 124, 128, 155, 160, 199, 244, 248, 305, 310, 320, 398, 488, 496, 610, 620, 640, 796, 976, 992, 995, 1220, 1240, 1592, 1891, 1952, 1984, 1990, 2440, 2480, 3184, 3782, 3904, 3968, 3980, 4880, 4960, 6169, 6368, 7564, 7808, 7960, 9455, 9760, 9920, 12139, 12338, 12736, 15128, 15920, 18910, 19520, 19840, 24278, 24676, 25472, 30256, 30845, 31840, 37820, 39040, 48556, 49352, 60512, 60695, 61690, 63680, 75640, 97112, 98704, 121024, 121390, 123380, 127360, 151280, 194224, 197408, 242048, 242780, 246760, 302560, 376309, 388448, 394816, 485560, 493520, 605120, 752618, 776896, 789632, 971120, 987040, 1210240, 1505236, 1553792, 1881545, 1942240, 1974080, 3010472, 3763090, 3884480, 3948160, 6020944, 7526180, 7768960, 12041888, 15052360, 24083776, 30104720, 48167552, 60209440, 120418880, 240837760]

約数ペア:

[(1, 240837760), (2, 120418880), (4, 60209440), (5, 48167552), (8, 30104720), (10, 24083776), (16, 15052360), (20, 12041888), (31, 7768960), (32, 7526180), (40, 6020944), (61, 3948160), (62, 3884480), (64, 3763090), (80, 3010472), (122, 1974080), (124, 1942240), (128, 1881545), (155, 1553792), (160, 1505236), (199, 1210240), (244, 987040), (248, 971120), (305, 789632), (310, 776896), (320, 752618), (398, 605120), (488, 493520), (496, 485560), (610, 394816), (620, 388448), (640, 376309), (796, 302560), (976, 246760), (992, 242780), (995, 242048), (1220, 197408), (1240, 194224), (1592, 151280), (1891, 127360), (1952, 123380), (1984, 121390), (1990, 121024), (2440, 98704), (2480, 97112), (3184, 75640), (3782, 63680), (3904, 61690), (3968, 60695), (3980, 60512), (4880, 49352), (4960, 48556), (6169, 39040), (6368, 37820), (7564, 31840), (7808, 30845), (7960, 30256), (9455, 25472), (9760, 24676), (9920, 24278), (12139, 19840), (12338, 19520), (12736, 18910), (15128, 15920)]