16421860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1289}}^1$

素因数の和:1325

約数の個数: 72

約数和(自身を含む): 43235640

約数和(自身を除く): 26813780

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1289, 1820, 2548, 2578, 3185, 5156, 6370, 6445, 9023, 12740, 12890, 16757, 18046, 25780, 33514, 36092, 45115, 63161, 67028, 83785, 90230, 117299, 126322, 167570, 180460, 234598, 252644, 315805, 335140, 469196, 586495, 631610, 821093, 1172990, 1263220, 1642186, 2345980, 3284372, 4105465, 8210930, 16421860]

約数ペア:

[(1, 16421860), (2, 8210930), (4, 4105465), (5, 3284372), (7, 2345980), (10, 1642186), (13, 1263220), (14, 1172990), (20, 821093), (26, 631610), (28, 586495), (35, 469196), (49, 335140), (52, 315805), (65, 252644), (70, 234598), (91, 180460), (98, 167570), (130, 126322), (140, 117299), (182, 90230), (196, 83785), (245, 67028), (260, 63161), (364, 45115), (455, 36092), (490, 33514), (637, 25780), (910, 18046), (980, 16757), (1274, 12890), (1289, 12740), (1820, 9023), (2548, 6445), (2578, 6370), (3185, 5156)]