1290493885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{1259}}^1$

素因数の和:1701

約数の個数: 32

約数和(自身を含む): 1698278400

約数和(自身を除く): 407784515

約数列:

[1, 5, 17, 31, 85, 155, 389, 527, 1259, 1945, 2635, 6295, 6613, 12059, 21403, 33065, 39029, 60295, 107015, 195145, 205003, 489751, 663493, 1025015, 2448755, 3317465, 8325767, 15182281, 41628835, 75911405, 258098777, 1290493885]

約数ペア:

[(1, 1290493885), (5, 258098777), (17, 75911405), (31, 41628835), (85, 15182281), (155, 8325767), (389, 3317465), (527, 2448755), (1259, 1025015), (1945, 663493), (2635, 489751), (6295, 205003), (6613, 195145), (12059, 107015), (21403, 60295), (33065, 39029)]