9840640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{31}}^2$

素因数の和:89

約数の個数: 72

約数和(自身を含む): 24398010

約数和(自身を除く): 14557370

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 961, 992, 1024, 1240, 1280, 1922, 1984, 2048, 2480, 2560, 3844, 3968, 4805, 4960, 5120, 7688, 7936, 9610, 9920, 10240, 15376, 15872, 19220, 19840, 30752, 31744, 38440, 39680, 61504, 63488, 76880, 79360, 123008, 153760, 158720, 246016, 307520, 317440, 492032, 615040, 984064, 1230080, 1968128, 2460160, 4920320, 9840640]

約数ペア:

[(1, 9840640), (2, 4920320), (4, 2460160), (5, 1968128), (8, 1230080), (10, 984064), (16, 615040), (20, 492032), (31, 317440), (32, 307520), (40, 246016), (62, 158720), (64, 153760), (80, 123008), (124, 79360), (128, 76880), (155, 63488), (160, 61504), (248, 39680), (256, 38440), (310, 31744), (320, 30752), (496, 19840), (512, 19220), (620, 15872), (640, 15376), (961, 10240), (992, 9920), (1024, 9610), (1240, 7936), (1280, 7688), (1922, 5120), (1984, 4960), (2048, 4805), (2480, 3968), (2560, 3844)]