819968500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1249}}^1$

素因数の和:1382

約数の個数: 96

約数和(自身を含む): 1949220000

約数和(自身を除く): 1129251500

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 101, 125, 130, 202, 250, 260, 325, 404, 500, 505, 650, 1010, 1249, 1300, 1313, 1625, 2020, 2498, 2525, 2626, 3250, 4996, 5050, 5252, 6245, 6500, 6565, 10100, 12490, 12625, 13130, 16237, 24980, 25250, 26260, 31225, 32474, 32825, 50500, 62450, 64948, 65650, 81185, 124900, 126149, 131300, 156125, 162370, 164125, 252298, 312250, 324740, 328250, 405925, 504596, 624500, 630745, 656500, 811850, 1261490, 1623700, 1639937, 2029625, 2522980, 3153725, 3279874, 4059250, 6307450, 6559748, 8118500, 8199685, 12614900, 15768625, 16399370, 31537250, 32798740, 40998425, 63074500, 81996850, 163993700, 204992125, 409984250, 819968500]

約数ペア:

[(1, 819968500), (2, 409984250), (4, 204992125), (5, 163993700), (10, 81996850), (13, 63074500), (20, 40998425), (25, 32798740), (26, 31537250), (50, 16399370), (52, 15768625), (65, 12614900), (100, 8199685), (101, 8118500), (125, 6559748), (130, 6307450), (202, 4059250), (250, 3279874), (260, 3153725), (325, 2522980), (404, 2029625), (500, 1639937), (505, 1623700), (650, 1261490), (1010, 811850), (1249, 656500), (1300, 630745), (1313, 624500), (1625, 504596), (2020, 405925), (2498, 328250), (2525, 324740), (2626, 312250), (3250, 252298), (4996, 164125), (5050, 162370), (5252, 156125), (6245, 131300), (6500, 126149), (6565, 124900), (10100, 81185), (12490, 65650), (12625, 64948), (13130, 62450), (16237, 50500), (24980, 32825), (25250, 32474), (26260, 31225)]