81374020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{44711}}^1$

素因数の和:44740

約数の個数: 48

約数和(自身を含む): 210325248

約数和(自身を除く): 128951228

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 44711, 89422, 178844, 223555, 312977, 447110, 581243, 625954, 894220, 1162486, 1251908, 1564885, 2324972, 2906215, 3129770, 4068701, 5812430, 6259540, 8137402, 11624860, 16274804, 20343505, 40687010, 81374020]

約数ペア:

[(1, 81374020), (2, 40687010), (4, 20343505), (5, 16274804), (7, 11624860), (10, 8137402), (13, 6259540), (14, 5812430), (20, 4068701), (26, 3129770), (28, 2906215), (35, 2324972), (52, 1564885), (65, 1251908), (70, 1162486), (91, 894220), (130, 625954), (140, 581243), (182, 447110), (260, 312977), (364, 223555), (455, 178844), (910, 89422), (1820, 44711)]