25134980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{349}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 57212400

約数和(自身を除く): 32077420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 277, 349, 554, 698, 1108, 1385, 1396, 1745, 2770, 3490, 3601, 4537, 5540, 6980, 7202, 9074, 14404, 18005, 18148, 22685, 36010, 45370, 72020, 90740, 96673, 193346, 386692, 483365, 966730, 1256749, 1933460, 2513498, 5026996, 6283745, 12567490, 25134980]

約数ペア:

[(1, 25134980), (2, 12567490), (4, 6283745), (5, 5026996), (10, 2513498), (13, 1933460), (20, 1256749), (26, 966730), (52, 483365), (65, 386692), (130, 193346), (260, 96673), (277, 90740), (349, 72020), (554, 45370), (698, 36010), (1108, 22685), (1385, 18148), (1396, 18005), (1745, 14404), (2770, 9074), (3490, 7202), (3601, 6980), (4537, 5540)]