20057415

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{941}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 38659680

約数和(自身を除く): 18602265

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 203, 245, 435, 609, 735, 941, 1015, 1421, 2823, 3045, 4263, 4705, 6587, 7105, 14115, 19761, 21315, 27289, 32935, 46109, 81867, 98805, 136445, 138327, 191023, 230545, 409335, 573069, 691635, 955115, 1337161, 2865345, 4011483, 6685805, 20057415]

約数ペア:

[(1, 20057415), (3, 6685805), (5, 4011483), (7, 2865345), (15, 1337161), (21, 955115), (29, 691635), (35, 573069), (49, 409335), (87, 230545), (105, 191023), (145, 138327), (147, 136445), (203, 98805), (245, 81867), (435, 46109), (609, 32935), (735, 27289), (941, 21315), (1015, 19761), (1421, 14115), (2823, 7105), (3045, 6587), (4263, 4705)]