159998720

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{2551}}^1$

素因数の和:2586

約数の個数: 108

約数和(自身を含む): 445992624

約数和(自身を除く): 285993904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 2551, 3136, 3920, 4480, 5102, 6272, 7840, 8960, 10204, 12544, 12755, 15680, 17857, 20408, 25510, 31360, 35714, 40816, 51020, 62720, 71428, 81632, 89285, 102040, 124999, 142856, 163264, 178570, 204080, 249998, 285712, 326528, 357140, 408160, 499996, 571424, 624995, 653056, 714280, 816320, 999992, 1142848, 1249990, 1428560, 1632640, 1999984, 2285696, 2499980, 2857120, 3265280, 3999968, 4571392, 4999960, 5714240, 7999936, 9999920, 11428480, 15999872, 19999840, 22856960, 31999744, 39999680, 79999360, 159998720]

約数ペア:

[(1, 159998720), (2, 79999360), (4, 39999680), (5, 31999744), (7, 22856960), (8, 19999840), (10, 15999872), (14, 11428480), (16, 9999920), (20, 7999936), (28, 5714240), (32, 4999960), (35, 4571392), (40, 3999968), (49, 3265280), (56, 2857120), (64, 2499980), (70, 2285696), (80, 1999984), (98, 1632640), (112, 1428560), (128, 1249990), (140, 1142848), (160, 999992), (196, 816320), (224, 714280), (245, 653056), (256, 624995), (280, 571424), (320, 499996), (392, 408160), (448, 357140), (490, 326528), (560, 285712), (640, 249998), (784, 204080), (896, 178570), (980, 163264), (1120, 142856), (1280, 124999), (1568, 102040), (1792, 89285), (1960, 81632), (2240, 71428), (2551, 62720), (3136, 51020), (3920, 40816), (4480, 35714), (5102, 31360), (6272, 25510), (7840, 20408), (8960, 17857), (10204, 15680), (12544, 12755)]