201980220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{258949}}^1$

素因数の和:258974

約数の個数: 48

約数和(自身を含む): 609050400

約数和(自身を除く): 407070180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 258949, 517898, 776847, 1035796, 1294745, 1553694, 2589490, 3107388, 3366337, 3884235, 5178980, 6732674, 7768470, 10099011, 13465348, 15536940, 16831685, 20198022, 33663370, 40396044, 50495055, 67326740, 100990110, 201980220]

約数ペア:

[(1, 201980220), (2, 100990110), (3, 67326740), (4, 50495055), (5, 40396044), (6, 33663370), (10, 20198022), (12, 16831685), (13, 15536940), (15, 13465348), (20, 10099011), (26, 7768470), (30, 6732674), (39, 5178980), (52, 3884235), (60, 3366337), (65, 3107388), (78, 2589490), (130, 1553694), (156, 1294745), (195, 1035796), (260, 776847), (390, 517898), (780, 258949)]