19198775620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{503}}^1\times {\mathrm{523}}^1$

素因数の和:1165

約数の個数: 96

約数和(自身を含む): 41927880960

約数和(自身を除く): 22729105340

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 503, 523, 820, 890, 1006, 1046, 1780, 2012, 2092, 2515, 2615, 3649, 5030, 5230, 7298, 10060, 10460, 14596, 18245, 20623, 21443, 36490, 41246, 42886, 44767, 46547, 72980, 82492, 85772, 89534, 93094, 103115, 107215, 179068, 186188, 206230, 214430, 223835, 232735, 263069, 412460, 428860, 447670, 465470, 526138, 895340, 930940, 1052276, 1315345, 1835447, 1908427, 2630690, 3670894, 3816854, 5261380, 7341788, 7633708, 9177235, 9542135, 10785829, 18354470, 19084270, 21571658, 23413141, 36708940, 38168540, 43143316, 46826282, 53929145, 93652564, 107858290, 117065705, 215716580, 234131410, 468262820, 959938781, 1919877562, 3839755124, 4799693905, 9599387810, 19198775620]

約数ペア:

[(1, 19198775620), (2, 9599387810), (4, 4799693905), (5, 3839755124), (10, 1919877562), (20, 959938781), (41, 468262820), (82, 234131410), (89, 215716580), (164, 117065705), (178, 107858290), (205, 93652564), (356, 53929145), (410, 46826282), (445, 43143316), (503, 38168540), (523, 36708940), (820, 23413141), (890, 21571658), (1006, 19084270), (1046, 18354470), (1780, 10785829), (2012, 9542135), (2092, 9177235), (2515, 7633708), (2615, 7341788), (3649, 5261380), (5030, 3816854), (5230, 3670894), (7298, 2630690), (10060, 1908427), (10460, 1835447), (14596, 1315345), (18245, 1052276), (20623, 930940), (21443, 895340), (36490, 526138), (41246, 465470), (42886, 447670), (44767, 428860), (46547, 412460), (72980, 263069), (82492, 232735), (85772, 223835), (89534, 214430), (93094, 206230), (103115, 186188), (107215, 179068)]