28777425

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 50086080

約数和(自身を除く): 21308655

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 101, 131, 145, 303, 393, 435, 505, 655, 725, 1515, 1965, 2175, 2525, 2929, 3275, 3799, 7575, 8787, 9825, 11397, 13231, 14645, 18995, 39693, 43935, 56985, 66155, 73225, 94975, 198465, 219675, 284925, 330775, 383699, 992325, 1151097, 1918495, 5755485, 9592475, 28777425]

約数ペア:

[(1, 28777425), (3, 9592475), (5, 5755485), (15, 1918495), (25, 1151097), (29, 992325), (75, 383699), (87, 330775), (101, 284925), (131, 219675), (145, 198465), (303, 94975), (393, 73225), (435, 66155), (505, 56985), (655, 43935), (725, 39693), (1515, 18995), (1965, 14645), (2175, 13231), (2525, 11397), (2929, 9825), (3275, 8787), (3799, 7575)]