16978021216

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{165233}}^1$

素因数の和:165288

約数の個数: 72

約数和(自身を含む): 38099655720

約数和(自身を除く): 21121634504

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 169, 208, 247, 304, 338, 416, 494, 608, 676, 988, 1352, 1976, 2704, 3211, 3952, 5408, 6422, 7904, 12844, 25688, 51376, 102752, 165233, 330466, 660932, 1321864, 2148029, 2643728, 3139427, 4296058, 5287456, 6278854, 8592116, 12557708, 17184232, 25115416, 27924377, 34368464, 40812551, 50230832, 55848754, 68736928, 81625102, 100461664, 111697508, 163250204, 223395016, 326500408, 446790032, 530563163, 653000816, 893580064, 1061126326, 1306001632, 2122252652, 4244505304, 8489010608, 16978021216]

約数ペア:

[(1, 16978021216), (2, 8489010608), (4, 4244505304), (8, 2122252652), (13, 1306001632), (16, 1061126326), (19, 893580064), (26, 653000816), (32, 530563163), (38, 446790032), (52, 326500408), (76, 223395016), (104, 163250204), (152, 111697508), (169, 100461664), (208, 81625102), (247, 68736928), (304, 55848754), (338, 50230832), (416, 40812551), (494, 34368464), (608, 27924377), (676, 25115416), (988, 17184232), (1352, 12557708), (1976, 8592116), (2704, 6278854), (3211, 5287456), (3952, 4296058), (5408, 3139427), (6422, 2643728), (7904, 2148029), (12844, 1321864), (25688, 660932), (51376, 330466), (102752, 165233)]