20852912985

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1\times {\mathrm{911}}^1$

素因数の和:1570

約数の個数: 64

約数和(自身を含む): 34962140160

約数和(自身を除く): 14109227175

約数列:

[1, 3, 5, 15, 29, 87, 101, 145, 303, 435, 505, 521, 911, 1515, 1563, 2605, 2733, 2929, 4555, 7815, 8787, 13665, 14645, 15109, 26419, 43935, 45327, 52621, 75545, 79257, 92011, 132095, 157863, 226635, 263105, 276033, 396285, 460055, 474631, 789315, 1380165, 1423893, 1526009, 2373155, 2668319, 4578027, 7119465, 7630045, 8004957, 13341595, 13764299, 22890135, 40024785, 41292897, 47937731, 68821495, 143813193, 206464485, 239688655, 719065965, 1390194199, 4170582597, 6950970995, 20852912985]

約数ペア:

[(1, 20852912985), (3, 6950970995), (5, 4170582597), (15, 1390194199), (29, 719065965), (87, 239688655), (101, 206464485), (145, 143813193), (303, 68821495), (435, 47937731), (505, 41292897), (521, 40024785), (911, 22890135), (1515, 13764299), (1563, 13341595), (2605, 8004957), (2733, 7630045), (2929, 7119465), (4555, 4578027), (7815, 2668319), (8787, 2373155), (13665, 1526009), (14645, 1423893), (15109, 1380165), (26419, 789315), (43935, 474631), (45327, 460055), (52621, 396285), (75545, 276033), (79257, 263105), (92011, 226635), (132095, 157863)]