20881961670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1\times {\mathrm{9661}}^1$

素因数の和:10441

約数の個数: 64

約数和(自身を含む): 50658252480

約数和(自身を除く): 29776290810

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 109, 218, 327, 545, 654, 661, 1090, 1322, 1635, 1983, 3270, 3305, 3966, 6610, 9661, 9915, 19322, 19830, 28983, 48305, 57966, 72049, 96610, 144098, 144915, 216147, 289830, 360245, 432294, 720490, 1053049, 1080735, 2106098, 2161470, 3159147, 5265245, 6318294, 6385921, 10530490, 12771842, 15795735, 19157763, 31591470, 31929605, 38315526, 63859210, 95788815, 191577630, 696065389, 1392130778, 2088196167, 3480326945, 4176392334, 6960653890, 10440980835, 20881961670]

約数ペア:

[(1, 20881961670), (2, 10440980835), (3, 6960653890), (5, 4176392334), (6, 3480326945), (10, 2088196167), (15, 1392130778), (30, 696065389), (109, 191577630), (218, 95788815), (327, 63859210), (545, 38315526), (654, 31929605), (661, 31591470), (1090, 19157763), (1322, 15795735), (1635, 12771842), (1983, 10530490), (3270, 6385921), (3305, 6318294), (3966, 5265245), (6610, 3159147), (9661, 2161470), (9915, 2106098), (19322, 1080735), (19830, 1053049), (28983, 720490), (48305, 432294), (57966, 360245), (72049, 289830), (96610, 216147), (144098, 144915)]