205657995

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 362880000

約数和(自身を除く): 157222005

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 149, 167, 285, 435, 447, 501, 551, 745, 835, 1653, 2235, 2505, 2755, 2831, 3173, 4321, 4843, 8265, 8493, 9519, 12963, 14155, 14529, 15865, 21605, 24215, 24883, 42465, 47595, 64815, 72645, 74649, 82099, 92017, 124415, 246297, 276051, 373245, 410495, 460085, 472777, 721607, 1231485, 1380255, 1418331, 2164821, 2363885, 3608035, 7091655, 10824105, 13710533, 41131599, 68552665, 205657995]

約数ペア:

[(1, 205657995), (3, 68552665), (5, 41131599), (15, 13710533), (19, 10824105), (29, 7091655), (57, 3608035), (87, 2363885), (95, 2164821), (145, 1418331), (149, 1380255), (167, 1231485), (285, 721607), (435, 472777), (447, 460085), (501, 410495), (551, 373245), (745, 276051), (835, 246297), (1653, 124415), (2235, 92017), (2505, 82099), (2755, 74649), (2831, 72645), (3173, 64815), (4321, 47595), (4843, 42465), (8265, 24883), (8493, 24215), (9519, 21605), (12963, 15865), (14155, 14529)]