80222740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1291}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 182327040

約数和(自身を除く): 102104300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 478, 956, 1195, 1291, 2390, 2582, 3107, 4780, 5164, 6214, 6455, 12428, 12910, 15535, 16783, 25820, 31070, 33566, 62140, 67132, 83915, 167830, 308549, 335660, 617098, 1234196, 1542745, 3085490, 4011137, 6170980, 8022274, 16044548, 20055685, 40111370, 80222740]

約数ペア:

[(1, 80222740), (2, 40111370), (4, 20055685), (5, 16044548), (10, 8022274), (13, 6170980), (20, 4011137), (26, 3085490), (52, 1542745), (65, 1234196), (130, 617098), (239, 335660), (260, 308549), (478, 167830), (956, 83915), (1195, 67132), (1291, 62140), (2390, 33566), (2582, 31070), (3107, 25820), (4780, 16783), (5164, 15535), (6214, 12910), (6455, 12428)]