257409480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{463}}^1$

素因数の和:631

約数の個数: 128

約数和(自身を含む): 799787520

約数和(自身を除く): 542378040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 113, 120, 123, 164, 205, 226, 246, 328, 339, 410, 452, 463, 492, 565, 615, 678, 820, 904, 926, 984, 1130, 1230, 1356, 1389, 1640, 1695, 1852, 2260, 2315, 2460, 2712, 2778, 3390, 3704, 4520, 4630, 4633, 4920, 5556, 6780, 6945, 9260, 9266, 11112, 13560, 13890, 13899, 18520, 18532, 18983, 23165, 27780, 27798, 37064, 37966, 46330, 52319, 55560, 55596, 56949, 69495, 75932, 92660, 94915, 104638, 111192, 113898, 138990, 151864, 156957, 185320, 189830, 209276, 227796, 261595, 277980, 284745, 313914, 379660, 418552, 455592, 523190, 555960, 569490, 627828, 759320, 784785, 1046380, 1138980, 1255656, 1569570, 2092760, 2145079, 2277960, 3139140, 4290158, 6278280, 6435237, 8580316, 10725395, 12870474, 17160632, 21450790, 25740948, 32176185, 42901580, 51481896, 64352370, 85803160, 128704740, 257409480]

約数ペア:

[(1, 257409480), (2, 128704740), (3, 85803160), (4, 64352370), (5, 51481896), (6, 42901580), (8, 32176185), (10, 25740948), (12, 21450790), (15, 17160632), (20, 12870474), (24, 10725395), (30, 8580316), (40, 6435237), (41, 6278280), (60, 4290158), (82, 3139140), (113, 2277960), (120, 2145079), (123, 2092760), (164, 1569570), (205, 1255656), (226, 1138980), (246, 1046380), (328, 784785), (339, 759320), (410, 627828), (452, 569490), (463, 555960), (492, 523190), (565, 455592), (615, 418552), (678, 379660), (820, 313914), (904, 284745), (926, 277980), (984, 261595), (1130, 227796), (1230, 209276), (1356, 189830), (1389, 185320), (1640, 156957), (1695, 151864), (1852, 138990), (2260, 113898), (2315, 111192), (2460, 104638), (2712, 94915), (2778, 92660), (3390, 75932), (3704, 69495), (4520, 56949), (4630, 55596), (4633, 55560), (4920, 52319), (5556, 46330), (6780, 37966), (6945, 37064), (9260, 27798), (9266, 27780), (11112, 23165), (13560, 18983), (13890, 18532), (13899, 18520)]