20890633456

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{892457}}^1$

素因数の和:892502

約数の個数: 80

約数和(自身を含む): 53119100160

約数和(自身を除く): 32228466704

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 76, 77, 88, 112, 133, 152, 154, 176, 209, 266, 304, 308, 418, 532, 616, 836, 1064, 1232, 1463, 1672, 2128, 2926, 3344, 5852, 11704, 23408, 892457, 1784914, 3569828, 6247199, 7139656, 9817027, 12494398, 14279312, 16956683, 19634054, 24988796, 33913366, 39268108, 49977592, 67826732, 68719189, 78536216, 99955184, 118696781, 135653464, 137438378, 157072432, 186523513, 237393562, 271306928, 274876756, 373047026, 474787124, 549753512, 746094052, 949574248, 1099507024, 1305664591, 1492188104, 1899148496, 2611329182, 2984376208, 5222658364, 10445316728, 20890633456]

約数ペア:

[(1, 20890633456), (2, 10445316728), (4, 5222658364), (7, 2984376208), (8, 2611329182), (11, 1899148496), (14, 1492188104), (16, 1305664591), (19, 1099507024), (22, 949574248), (28, 746094052), (38, 549753512), (44, 474787124), (56, 373047026), (76, 274876756), (77, 271306928), (88, 237393562), (112, 186523513), (133, 157072432), (152, 137438378), (154, 135653464), (176, 118696781), (209, 99955184), (266, 78536216), (304, 68719189), (308, 67826732), (418, 49977592), (532, 39268108), (616, 33913366), (836, 24988796), (1064, 19634054), (1232, 16956683), (1463, 14279312), (1672, 12494398), (2128, 9817027), (2926, 7139656), (3344, 6247199), (5852, 3569828), (11704, 1784914), (23408, 892457)]