19510625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:123

約数の個数: 40

約数和(自身を含む): 26991360

約数和(自身を除く): 7480735

約数列:

[1, 5, 19, 25, 31, 53, 95, 125, 155, 265, 475, 589, 625, 775, 1007, 1325, 1643, 2375, 2945, 3875, 5035, 6625, 8215, 11875, 14725, 19375, 25175, 31217, 33125, 41075, 73625, 125875, 156085, 205375, 368125, 629375, 780425, 1026875, 3902125, 19510625]

約数ペア:

[(1, 19510625), (5, 3902125), (19, 1026875), (25, 780425), (31, 629375), (53, 368125), (95, 205375), (125, 156085), (155, 125875), (265, 73625), (475, 41075), (589, 33125), (625, 31217), (775, 25175), (1007, 19375), (1325, 14725), (1643, 11875), (2375, 8215), (2945, 6625), (3875, 5035)]