20996870545

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{5669}}^1$

素因数の和:5854

約数の個数: 64

約数和(自身を含む): 31039303680

約数和(自身を除く): 10042433135

約数列:

[1, 5, 7, 23, 35, 43, 107, 115, 161, 215, 301, 535, 749, 805, 989, 1505, 2461, 3745, 4601, 4945, 5669, 6923, 12305, 17227, 23005, 28345, 32207, 34615, 39683, 86135, 105823, 130387, 161035, 198415, 243767, 529115, 606583, 651935, 740761, 912709, 1218835, 1706369, 3032915, 3703805, 4246081, 4563545, 5606641, 8531845, 13951409, 21230405, 26083069, 28033205, 39246487, 69757045, 97659863, 130415345, 182581483, 196232435, 488299315, 599910587, 912907415, 2999552935, 4199374109, 20996870545]

約数ペア:

[(1, 20996870545), (5, 4199374109), (7, 2999552935), (23, 912907415), (35, 599910587), (43, 488299315), (107, 196232435), (115, 182581483), (161, 130415345), (215, 97659863), (301, 69757045), (535, 39246487), (749, 28033205), (805, 26083069), (989, 21230405), (1505, 13951409), (2461, 8531845), (3745, 5606641), (4601, 4563545), (4945, 4246081), (5669, 3703805), (6923, 3032915), (12305, 1706369), (17227, 1218835), (23005, 912709), (28345, 740761), (32207, 651935), (34615, 606583), (39683, 529115), (86135, 243767), (105823, 198415), (130387, 161035)]