61430980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{677}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 139532400

約数和(自身を除く): 78101420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 349, 677, 698, 1354, 1396, 1745, 2708, 3385, 3490, 4537, 6770, 6980, 8801, 9074, 13540, 17602, 18148, 22685, 35204, 44005, 45370, 88010, 90740, 176020, 236273, 472546, 945092, 1181365, 2362730, 3071549, 4725460, 6143098, 12286196, 15357745, 30715490, 61430980]

約数ペア:

[(1, 61430980), (2, 30715490), (4, 15357745), (5, 12286196), (10, 6143098), (13, 4725460), (20, 3071549), (26, 2362730), (52, 1181365), (65, 945092), (130, 472546), (260, 236273), (349, 176020), (677, 90740), (698, 88010), (1354, 45370), (1396, 44005), (1745, 35204), (2708, 22685), (3385, 18148), (3490, 17602), (4537, 13540), (6770, 9074), (6980, 8801)]