89240320

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 239000832

約数和(自身を除く): 149760512

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, 173, 208, 248, 256, 260, 310, 320, 346, 403, 416, 496, 520, 620, 640, 692, 806, 832, 865, 992, 1040, 1240, 1280, 1384, 1612, 1664, 1730, 1984, 2015, 2080, 2249, 2480, 2768, 3224, 3328, 3460, 3968, 4030, 4160, 4498, 4960, 5363, 5536, 6448, 6920, 7936, 8060, 8320, 8996, 9920, 10726, 11072, 11245, 12896, 13840, 16120, 16640, 17992, 19840, 21452, 22144, 22490, 25792, 26815, 27680, 32240, 35984, 39680, 42904, 44288, 44980, 51584, 53630, 55360, 64480, 69719, 71968, 85808, 89960, 103168, 107260, 110720, 128960, 139438, 143936, 171616, 179920, 214520, 221440, 257920, 278876, 287872, 343232, 348595, 359840, 429040, 515840, 557752, 575744, 686464, 697190, 719680, 858080, 1115504, 1372928, 1394380, 1439360, 1716160, 2231008, 2788760, 2878720, 3432320, 4462016, 5577520, 6864640, 8924032, 11155040, 17848064, 22310080, 44620160, 89240320]

約数ペア:

[(1, 89240320), (2, 44620160), (4, 22310080), (5, 17848064), (8, 11155040), (10, 8924032), (13, 6864640), (16, 5577520), (20, 4462016), (26, 3432320), (31, 2878720), (32, 2788760), (40, 2231008), (52, 1716160), (62, 1439360), (64, 1394380), (65, 1372928), (80, 1115504), (104, 858080), (124, 719680), (128, 697190), (130, 686464), (155, 575744), (160, 557752), (173, 515840), (208, 429040), (248, 359840), (256, 348595), (260, 343232), (310, 287872), (320, 278876), (346, 257920), (403, 221440), (416, 214520), (496, 179920), (520, 171616), (620, 143936), (640, 139438), (692, 128960), (806, 110720), (832, 107260), (865, 103168), (992, 89960), (1040, 85808), (1240, 71968), (1280, 69719), (1384, 64480), (1612, 55360), (1664, 53630), (1730, 51584), (1984, 44980), (2015, 44288), (2080, 42904), (2249, 39680), (2480, 35984), (2768, 32240), (3224, 27680), (3328, 26815), (3460, 25792), (3968, 22490), (4030, 22144), (4160, 21452), (4498, 19840), (4960, 17992), (5363, 16640), (5536, 16120), (6448, 13840), (6920, 12896), (7936, 11245), (8060, 11072), (8320, 10726), (8996, 9920)]