20791854080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{238877}}^1$

素因数の和:238919

約数の個数: 88

約数和(自身を含む): 52810192728

約数和(自身を除く): 32018338648

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 1024, 1088, 1280, 1360, 2176, 2560, 2720, 4352, 5120, 5440, 8704, 10880, 17408, 21760, 43520, 87040, 238877, 477754, 955508, 1194385, 1911016, 2388770, 3822032, 4060909, 4777540, 7644064, 8121818, 9555080, 15288128, 16243636, 19110160, 20304545, 30576256, 32487272, 38220320, 40609090, 61152512, 64974544, 76440640, 81218180, 122305024, 129949088, 152881280, 162436360, 244610048, 259898176, 305762560, 324872720, 519796352, 611525120, 649745440, 1039592704, 1223050240, 1299490880, 2079185408, 2598981760, 4158370816, 5197963520, 10395927040, 20791854080]

約数ペア:

[(1, 20791854080), (2, 10395927040), (4, 5197963520), (5, 4158370816), (8, 2598981760), (10, 2079185408), (16, 1299490880), (17, 1223050240), (20, 1039592704), (32, 649745440), (34, 611525120), (40, 519796352), (64, 324872720), (68, 305762560), (80, 259898176), (85, 244610048), (128, 162436360), (136, 152881280), (160, 129949088), (170, 122305024), (256, 81218180), (272, 76440640), (320, 64974544), (340, 61152512), (512, 40609090), (544, 38220320), (640, 32487272), (680, 30576256), (1024, 20304545), (1088, 19110160), (1280, 16243636), (1360, 15288128), (2176, 9555080), (2560, 8121818), (2720, 7644064), (4352, 4777540), (5120, 4060909), (5440, 3822032), (8704, 2388770), (10880, 1911016), (17408, 1194385), (21760, 955508), (43520, 477754), (87040, 238877)]