5120720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^2$

素因数の和:81

約数の個数: 90

約数和(自身を含む): 13680114

約数和(自身を除く): 8559394

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 121, 176, 184, 220, 230, 242, 253, 368, 440, 460, 484, 506, 529, 605, 880, 920, 968, 1012, 1058, 1210, 1265, 1840, 1936, 2024, 2116, 2420, 2530, 2645, 2783, 4048, 4232, 4840, 5060, 5290, 5566, 5819, 8464, 9680, 10120, 10580, 11132, 11638, 13915, 20240, 21160, 22264, 23276, 27830, 29095, 42320, 44528, 46552, 55660, 58190, 64009, 93104, 111320, 116380, 128018, 222640, 232760, 256036, 320045, 465520, 512072, 640090, 1024144, 1280180, 2560360, 5120720]

約数ペア:

[(1, 5120720), (2, 2560360), (4, 1280180), (5, 1024144), (8, 640090), (10, 512072), (11, 465520), (16, 320045), (20, 256036), (22, 232760), (23, 222640), (40, 128018), (44, 116380), (46, 111320), (55, 93104), (80, 64009), (88, 58190), (92, 55660), (110, 46552), (115, 44528), (121, 42320), (176, 29095), (184, 27830), (220, 23276), (230, 22264), (242, 21160), (253, 20240), (368, 13915), (440, 11638), (460, 11132), (484, 10580), (506, 10120), (529, 9680), (605, 8464), (880, 5819), (920, 5566), (968, 5290), (1012, 5060), (1058, 4840), (1210, 4232), (1265, 4048), (1840, 2783), (1936, 2645), (2024, 2530), (2116, 2420)]