82878380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{883}}^1$

素因数の和:943

約数の個数: 72

約数和(自身を含む): 198040752

約数和(自身を除く): 115162372

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 361, 380, 494, 722, 883, 988, 1235, 1444, 1766, 1805, 2470, 3532, 3610, 4415, 4693, 4940, 7220, 8830, 9386, 11479, 16777, 17660, 18772, 22958, 23465, 33554, 45916, 46930, 57395, 67108, 83885, 93860, 114790, 167770, 218101, 229580, 318763, 335540, 436202, 637526, 872404, 1090505, 1275052, 1593815, 2181010, 3187630, 4143919, 4362020, 6375260, 8287838, 16575676, 20719595, 41439190, 82878380]

約数ペア:

[(1, 82878380), (2, 41439190), (4, 20719595), (5, 16575676), (10, 8287838), (13, 6375260), (19, 4362020), (20, 4143919), (26, 3187630), (38, 2181010), (52, 1593815), (65, 1275052), (76, 1090505), (95, 872404), (130, 637526), (190, 436202), (247, 335540), (260, 318763), (361, 229580), (380, 218101), (494, 167770), (722, 114790), (883, 93860), (988, 83885), (1235, 67108), (1444, 57395), (1766, 46930), (1805, 45916), (2470, 33554), (3532, 23465), (3610, 22958), (4415, 18772), (4693, 17660), (4940, 16777), (7220, 11479), (8830, 9386)]