1780498850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{63703}}^1$

素因数の和:63771

約数の個数: 48

約数和(自身を含む): 3649474752

約数和(自身を除く): 1868975902

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 1075, 1118, 2150, 2795, 5590, 13975, 27950, 63703, 127406, 318515, 637030, 828139, 1592575, 1656278, 2739229, 3185150, 4140695, 5478458, 8281390, 13696145, 20703475, 27392290, 35609977, 41406950, 68480725, 71219954, 136961450, 178049885, 356099770, 890249425, 1780498850]

約数ペア:

[(1, 1780498850), (2, 890249425), (5, 356099770), (10, 178049885), (13, 136961450), (25, 71219954), (26, 68480725), (43, 41406950), (50, 35609977), (65, 27392290), (86, 20703475), (130, 13696145), (215, 8281390), (325, 5478458), (430, 4140695), (559, 3185150), (650, 2739229), (1075, 1656278), (1118, 1592575), (2150, 828139), (2795, 637030), (5590, 318515), (13975, 127406), (27950, 63703)]