68375140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{359}}^1$

素因数の和:564

約数の個数: 48

約数和(自身を含む): 146966400

約数和(自身を除く): 78591260

約数列:

[1, 2, 4, 5, 10, 20, 89, 107, 178, 214, 356, 359, 428, 445, 535, 718, 890, 1070, 1436, 1780, 1795, 2140, 3590, 7180, 9523, 19046, 31951, 38092, 38413, 47615, 63902, 76826, 95230, 127804, 153652, 159755, 190460, 192065, 319510, 384130, 639020, 768260, 3418757, 6837514, 13675028, 17093785, 34187570, 68375140]

約数ペア:

[(1, 68375140), (2, 34187570), (4, 17093785), (5, 13675028), (10, 6837514), (20, 3418757), (89, 768260), (107, 639020), (178, 384130), (214, 319510), (356, 192065), (359, 190460), (428, 159755), (445, 153652), (535, 127804), (718, 95230), (890, 76826), (1070, 63902), (1436, 47615), (1780, 38413), (1795, 38092), (2140, 31951), (3590, 19046), (7180, 9523)]