21960804520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1\times {\mathrm{25339}}^1$

素因数の和:25858

約数の個数: 64

約数和(自身を含む): 50574585600

約数和(自身を除く): 28613781080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 461, 470, 922, 940, 1844, 1880, 2305, 3688, 4610, 9220, 18440, 21667, 25339, 43334, 50678, 86668, 101356, 108335, 126695, 173336, 202712, 216670, 253390, 433340, 506780, 866680, 1013560, 1190933, 2381866, 4763732, 5954665, 9527464, 11681279, 11909330, 23362558, 23818660, 46725116, 47637320, 58406395, 93450232, 116812790, 233625580, 467251160, 549020113, 1098040226, 2196080452, 2745100565, 4392160904, 5490201130, 10980402260, 21960804520]

約数ペア:

[(1, 21960804520), (2, 10980402260), (4, 5490201130), (5, 4392160904), (8, 2745100565), (10, 2196080452), (20, 1098040226), (40, 549020113), (47, 467251160), (94, 233625580), (188, 116812790), (235, 93450232), (376, 58406395), (461, 47637320), (470, 46725116), (922, 23818660), (940, 23362558), (1844, 11909330), (1880, 11681279), (2305, 9527464), (3688, 5954665), (4610, 4763732), (9220, 2381866), (18440, 1190933), (21667, 1013560), (25339, 866680), (43334, 506780), (50678, 433340), (86668, 253390), (101356, 216670), (108335, 202712), (126695, 173336)]