89742020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{701}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 194948208

約数和(自身を除く): 105206188

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 173, 185, 346, 370, 692, 701, 740, 865, 1402, 1730, 2804, 3460, 3505, 6401, 7010, 12802, 14020, 25604, 25937, 32005, 51874, 64010, 103748, 121273, 128020, 129685, 242546, 259370, 485092, 518740, 606365, 1212730, 2425460, 4487101, 8974202, 17948404, 22435505, 44871010, 89742020]

約数ペア:

[(1, 89742020), (2, 44871010), (4, 22435505), (5, 17948404), (10, 8974202), (20, 4487101), (37, 2425460), (74, 1212730), (148, 606365), (173, 518740), (185, 485092), (346, 259370), (370, 242546), (692, 129685), (701, 128020), (740, 121273), (865, 103748), (1402, 64010), (1730, 51874), (2804, 32005), (3460, 25937), (3505, 25604), (6401, 14020), (7010, 12802)]