828797440

素因数分解:

$2^9\times 5^1\times {\mathrm{421}}^1\times {\mathrm{769}}^1$

素因数の和:1213

約数の個数: 80

約数和(自身を含む): 1994481720

約数和(自身を除く): 1165684280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 421, 512, 640, 769, 842, 1280, 1538, 1684, 2105, 2560, 3076, 3368, 3845, 4210, 6152, 6736, 7690, 8420, 12304, 13472, 15380, 16840, 24608, 26944, 30760, 33680, 49216, 53888, 61520, 67360, 98432, 107776, 123040, 134720, 196864, 215552, 246080, 269440, 323749, 393728, 492160, 538880, 647498, 984320, 1077760, 1294996, 1618745, 1968640, 2589992, 3237490, 5179984, 6474980, 10359968, 12949960, 20719936, 25899920, 41439872, 51799840, 82879744, 103599680, 165759488, 207199360, 414398720, 828797440]

約数ペア:

[(1, 828797440), (2, 414398720), (4, 207199360), (5, 165759488), (8, 103599680), (10, 82879744), (16, 51799840), (20, 41439872), (32, 25899920), (40, 20719936), (64, 12949960), (80, 10359968), (128, 6474980), (160, 5179984), (256, 3237490), (320, 2589992), (421, 1968640), (512, 1618745), (640, 1294996), (769, 1077760), (842, 984320), (1280, 647498), (1538, 538880), (1684, 492160), (2105, 393728), (2560, 323749), (3076, 269440), (3368, 246080), (3845, 215552), (4210, 196864), (6152, 134720), (6736, 123040), (7690, 107776), (8420, 98432), (12304, 67360), (13472, 61520), (15380, 53888), (16840, 49216), (24608, 33680), (26944, 30760)]