80700440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{431}}^1$

素因数の和:624

約数の個数: 64

約数和(自身を含む): 189112320

約数和(自身を除く): 108411880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 151, 155, 248, 302, 310, 431, 604, 620, 755, 862, 1208, 1240, 1510, 1724, 2155, 3020, 3448, 4310, 4681, 6040, 8620, 9362, 13361, 17240, 18724, 23405, 26722, 37448, 46810, 53444, 65081, 66805, 93620, 106888, 130162, 133610, 187240, 260324, 267220, 325405, 520648, 534440, 650810, 1301620, 2017511, 2603240, 4035022, 8070044, 10087555, 16140088, 20175110, 40350220, 80700440]

約数ペア:

[(1, 80700440), (2, 40350220), (4, 20175110), (5, 16140088), (8, 10087555), (10, 8070044), (20, 4035022), (31, 2603240), (40, 2017511), (62, 1301620), (124, 650810), (151, 534440), (155, 520648), (248, 325405), (302, 267220), (310, 260324), (431, 187240), (604, 133610), (620, 130162), (755, 106888), (862, 93620), (1208, 66805), (1240, 65081), (1510, 53444), (1724, 46810), (2155, 37448), (3020, 26722), (3448, 23405), (4310, 18724), (4681, 17240), (6040, 13361), (8620, 9362)]