1265996800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2909}}^1$

素因数の和:2956

約数の個数: 132

約数和(自身を含む): 3323877660

約数和(自身を除く): 2057880860

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 128, 136, 160, 170, 200, 256, 272, 320, 340, 400, 425, 512, 544, 640, 680, 800, 850, 1024, 1088, 1280, 1360, 1600, 1700, 2176, 2560, 2720, 2909, 3200, 3400, 4352, 5120, 5440, 5818, 6400, 6800, 8704, 10880, 11636, 12800, 13600, 14545, 17408, 21760, 23272, 25600, 27200, 29090, 43520, 46544, 49453, 54400, 58180, 72725, 87040, 93088, 98906, 108800, 116360, 145450, 186176, 197812, 217600, 232720, 247265, 290900, 372352, 395624, 435200, 465440, 494530, 581800, 744704, 791248, 930880, 989060, 1163600, 1236325, 1489408, 1582496, 1861760, 1978120, 2327200, 2472650, 2978816, 3164992, 3723520, 3956240, 4654400, 4945300, 6329984, 7447040, 7912480, 9308800, 9890600, 12659968, 14894080, 15824960, 18617600, 19781200, 25319936, 31649920, 37235200, 39562400, 50639872, 63299840, 74470400, 79124800, 126599680, 158249600, 253199360, 316499200, 632998400, 1265996800]

約数ペア:

[(1, 1265996800), (2, 632998400), (4, 316499200), (5, 253199360), (8, 158249600), (10, 126599680), (16, 79124800), (17, 74470400), (20, 63299840), (25, 50639872), (32, 39562400), (34, 37235200), (40, 31649920), (50, 25319936), (64, 19781200), (68, 18617600), (80, 15824960), (85, 14894080), (100, 12659968), (128, 9890600), (136, 9308800), (160, 7912480), (170, 7447040), (200, 6329984), (256, 4945300), (272, 4654400), (320, 3956240), (340, 3723520), (400, 3164992), (425, 2978816), (512, 2472650), (544, 2327200), (640, 1978120), (680, 1861760), (800, 1582496), (850, 1489408), (1024, 1236325), (1088, 1163600), (1280, 989060), (1360, 930880), (1600, 791248), (1700, 744704), (2176, 581800), (2560, 494530), (2720, 465440), (2909, 435200), (3200, 395624), (3400, 372352), (4352, 290900), (5120, 247265), (5440, 232720), (5818, 217600), (6400, 197812), (6800, 186176), (8704, 145450), (10880, 116360), (11636, 108800), (12800, 98906), (13600, 93088), (14545, 87040), (17408, 72725), (21760, 58180), (23272, 54400), (25600, 49453), (27200, 46544), (29090, 43520)]