81380750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 168412608

約数和(自身を除く): 87031858

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 101, 110, 125, 202, 250, 275, 293, 505, 550, 586, 1010, 1111, 1375, 1465, 2222, 2525, 2750, 2930, 3223, 5050, 5555, 6446, 7325, 11110, 12625, 14650, 16115, 25250, 27775, 29593, 32230, 36625, 55550, 59186, 73250, 80575, 138875, 147965, 161150, 277750, 295930, 325523, 402875, 651046, 739825, 805750, 1479650, 1627615, 3255230, 3699125, 7398250, 8138075, 16276150, 40690375, 81380750]

約数ペア:

[(1, 81380750), (2, 40690375), (5, 16276150), (10, 8138075), (11, 7398250), (22, 3699125), (25, 3255230), (50, 1627615), (55, 1479650), (101, 805750), (110, 739825), (125, 651046), (202, 402875), (250, 325523), (275, 295930), (293, 277750), (505, 161150), (550, 147965), (586, 138875), (1010, 80575), (1111, 73250), (1375, 59186), (1465, 55550), (2222, 36625), (2525, 32230), (2750, 29593), (2930, 27775), (3223, 25250), (5050, 16115), (5555, 14650), (6446, 12625), (7325, 11110)]