220746778

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 410572800

約数和(自身を除く): 189826022

約数列:

[1, 2, 7, 14, 23, 43, 46, 86, 107, 149, 161, 214, 298, 301, 322, 602, 749, 989, 1043, 1498, 1978, 2086, 2461, 3427, 4601, 4922, 6407, 6854, 6923, 9202, 12814, 13846, 15943, 17227, 23989, 31886, 32207, 34454, 44849, 47978, 64414, 89698, 105823, 111601, 147361, 211646, 223202, 294722, 366689, 685549, 733378, 740761, 1031527, 1371098, 1481522, 2063054, 2566823, 4798843, 5133646, 9597686, 15767627, 31535254, 110373389, 220746778]

約数ペア:

[(1, 220746778), (2, 110373389), (7, 31535254), (14, 15767627), (23, 9597686), (43, 5133646), (46, 4798843), (86, 2566823), (107, 2063054), (149, 1481522), (161, 1371098), (214, 1031527), (298, 740761), (301, 733378), (322, 685549), (602, 366689), (749, 294722), (989, 223202), (1043, 211646), (1498, 147361), (1978, 111601), (2086, 105823), (2461, 89698), (3427, 64414), (4601, 47978), (4922, 44849), (6407, 34454), (6854, 32207), (6923, 31886), (9202, 23989), (12814, 17227), (13846, 15943)]