66778540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3739}}^1$

素因数の和:3814

約数の個数: 48

約数和(自身を含む): 150796800

約数和(自身を除く): 84018260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 3739, 4465, 7478, 8930, 14956, 17860, 18695, 37390, 71041, 74780, 142082, 175733, 284164, 351466, 355205, 702932, 710410, 878665, 1420820, 1757330, 3338927, 3514660, 6677854, 13355708, 16694635, 33389270, 66778540]

約数ペア:

[(1, 66778540), (2, 33389270), (4, 16694635), (5, 13355708), (10, 6677854), (19, 3514660), (20, 3338927), (38, 1757330), (47, 1420820), (76, 878665), (94, 710410), (95, 702932), (188, 355205), (190, 351466), (235, 284164), (380, 175733), (470, 142082), (893, 74780), (940, 71041), (1786, 37390), (3572, 18695), (3739, 17860), (4465, 14956), (7478, 8930)]