20345087672

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1470871}}^1$

素因数の和:1470916

約数の個数: 64

約数和(自身を含む): 49421299200

約数和(自身を除く): 29076211528

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 76, 91, 104, 133, 152, 182, 247, 266, 364, 494, 532, 728, 988, 1064, 1729, 1976, 3458, 6916, 13832, 1470871, 2941742, 5883484, 10296097, 11766968, 19121323, 20592194, 27946549, 38242646, 41184388, 55893098, 76485292, 82368776, 111786196, 133849261, 152970584, 195625843, 223572392, 267698522, 363305137, 391251686, 535397044, 726610274, 782503372, 1070794088, 1453220548, 1565006744, 2543135959, 2906441096, 5086271918, 10172543836, 20345087672]

約数ペア:

[(1, 20345087672), (2, 10172543836), (4, 5086271918), (7, 2906441096), (8, 2543135959), (13, 1565006744), (14, 1453220548), (19, 1070794088), (26, 782503372), (28, 726610274), (38, 535397044), (52, 391251686), (56, 363305137), (76, 267698522), (91, 223572392), (104, 195625843), (133, 152970584), (152, 133849261), (182, 111786196), (247, 82368776), (266, 76485292), (364, 55893098), (494, 41184388), (532, 38242646), (728, 27946549), (988, 20592194), (1064, 19121323), (1729, 11766968), (1976, 10296097), (3458, 5883484), (6916, 2941742), (13832, 1470871)]