19464540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{809}}^1$

素因数の和:1222

約数の個数: 48

約数和(自身を含む): 54704160

約数和(自身を除く): 35239620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 401, 802, 809, 1203, 1604, 1618, 2005, 2406, 2427, 3236, 4010, 4045, 4812, 4854, 6015, 8020, 8090, 9708, 12030, 12135, 16180, 24060, 24270, 48540, 324409, 648818, 973227, 1297636, 1622045, 1946454, 3244090, 3892908, 4866135, 6488180, 9732270, 19464540]

約数ペア:

[(1, 19464540), (2, 9732270), (3, 6488180), (4, 4866135), (5, 3892908), (6, 3244090), (10, 1946454), (12, 1622045), (15, 1297636), (20, 973227), (30, 648818), (60, 324409), (401, 48540), (802, 24270), (809, 24060), (1203, 16180), (1604, 12135), (1618, 12030), (2005, 9708), (2406, 8090), (2427, 8020), (3236, 6015), (4010, 4854), (4045, 4812)]