18507520

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:801

約数の個数: 72

約数和(自身を含む): 46725840

約数和(自身を除く): 28218320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 761, 1216, 1280, 1520, 1522, 2432, 3040, 3044, 3805, 4864, 6080, 6088, 7610, 12160, 12176, 14459, 15220, 24320, 24352, 28918, 30440, 48704, 57836, 60880, 72295, 97408, 115672, 121760, 144590, 194816, 231344, 243520, 289180, 462688, 487040, 578360, 925376, 974080, 1156720, 1850752, 2313440, 3701504, 4626880, 9253760, 18507520]

約数ペア:

[(1, 18507520), (2, 9253760), (4, 4626880), (5, 3701504), (8, 2313440), (10, 1850752), (16, 1156720), (19, 974080), (20, 925376), (32, 578360), (38, 487040), (40, 462688), (64, 289180), (76, 243520), (80, 231344), (95, 194816), (128, 144590), (152, 121760), (160, 115672), (190, 97408), (256, 72295), (304, 60880), (320, 57836), (380, 48704), (608, 30440), (640, 28918), (760, 24352), (761, 24320), (1216, 15220), (1280, 14459), (1520, 12176), (1522, 12160), (2432, 7610), (3040, 6088), (3044, 6080), (3805, 4864)]