20629744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{859}}^1$

素因数の和:965

約数の個数: 40

約数和(自身を含む): 42656000

約数和(自身を除く): 22026256

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 79, 152, 158, 304, 316, 632, 859, 1264, 1501, 1718, 3002, 3436, 6004, 6872, 12008, 13744, 16321, 24016, 32642, 65284, 67861, 130568, 135722, 261136, 271444, 542888, 1085776, 1289359, 2578718, 5157436, 10314872, 20629744]

約数ペア:

[(1, 20629744), (2, 10314872), (4, 5157436), (8, 2578718), (16, 1289359), (19, 1085776), (38, 542888), (76, 271444), (79, 261136), (152, 135722), (158, 130568), (304, 67861), (316, 65284), (632, 32642), (859, 24016), (1264, 16321), (1501, 13744), (1718, 12008), (3002, 6872), (3436, 6004)]