138760960

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1$

素因数の和:334

約数の個数: 144

約数和(自身を含む): 370863360

約数和(自身を除く): 232102400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 269, 310, 320, 403, 416, 496, 520, 538, 620, 640, 806, 832, 992, 1040, 1076, 1240, 1280, 1345, 1612, 1664, 1984, 2015, 2080, 2152, 2480, 2690, 3224, 3328, 3497, 3968, 4030, 4160, 4304, 4960, 5380, 6448, 6994, 7936, 8060, 8320, 8339, 8608, 9920, 10760, 12896, 13988, 16120, 16640, 16678, 17216, 17485, 19840, 21520, 25792, 27976, 32240, 33356, 34432, 34970, 39680, 41695, 43040, 51584, 55952, 64480, 66712, 68864, 69940, 83390, 86080, 103168, 108407, 111904, 128960, 133424, 139880, 166780, 172160, 216814, 223808, 257920, 266848, 279760, 333560, 344320, 433628, 447616, 515840, 533696, 542035, 559520, 667120, 867256, 895232, 1067392, 1084070, 1119040, 1334240, 1734512, 2134784, 2168140, 2238080, 2668480, 3469024, 4336280, 4476160, 5336960, 6938048, 8672560, 10673920, 13876096, 17345120, 27752192, 34690240, 69380480, 138760960]

約数ペア:

[(1, 138760960), (2, 69380480), (4, 34690240), (5, 27752192), (8, 17345120), (10, 13876096), (13, 10673920), (16, 8672560), (20, 6938048), (26, 5336960), (31, 4476160), (32, 4336280), (40, 3469024), (52, 2668480), (62, 2238080), (64, 2168140), (65, 2134784), (80, 1734512), (104, 1334240), (124, 1119040), (128, 1084070), (130, 1067392), (155, 895232), (160, 867256), (208, 667120), (248, 559520), (256, 542035), (260, 533696), (269, 515840), (310, 447616), (320, 433628), (403, 344320), (416, 333560), (496, 279760), (520, 266848), (538, 257920), (620, 223808), (640, 216814), (806, 172160), (832, 166780), (992, 139880), (1040, 133424), (1076, 128960), (1240, 111904), (1280, 108407), (1345, 103168), (1612, 86080), (1664, 83390), (1984, 69940), (2015, 68864), (2080, 66712), (2152, 64480), (2480, 55952), (2690, 51584), (3224, 43040), (3328, 41695), (3497, 39680), (3968, 34970), (4030, 34432), (4160, 33356), (4304, 32240), (4960, 27976), (5380, 25792), (6448, 21520), (6994, 19840), (7936, 17485), (8060, 17216), (8320, 16678), (8339, 16640), (8608, 16120), (9920, 13988), (10760, 12896)]