740147140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{2551}}^1$

素因数の和:2812

約数の個数: 48

約数和(自身を含む): 1582035840

約数和(自身を除く): 841888700

約数列:

[1, 2, 4, 5, 10, 20, 89, 163, 178, 326, 356, 445, 652, 815, 890, 1630, 1780, 2551, 3260, 5102, 10204, 12755, 14507, 25510, 29014, 51020, 58028, 72535, 145070, 227039, 290140, 415813, 454078, 831626, 908156, 1135195, 1663252, 2079065, 2270390, 4158130, 4540780, 8316260, 37007357, 74014714, 148029428, 185036785, 370073570, 740147140]

約数ペア:

[(1, 740147140), (2, 370073570), (4, 185036785), (5, 148029428), (10, 74014714), (20, 37007357), (89, 8316260), (163, 4540780), (178, 4158130), (326, 2270390), (356, 2079065), (445, 1663252), (652, 1135195), (815, 908156), (890, 831626), (1630, 454078), (1780, 415813), (2551, 290140), (3260, 227039), (5102, 145070), (10204, 72535), (12755, 58028), (14507, 51020), (25510, 29014)]