27798140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{383}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 61931520

約数和(自身を除く): 34133380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 380, 382, 383, 764, 766, 955, 1532, 1910, 1915, 3629, 3820, 3830, 7258, 7277, 7660, 14516, 14554, 18145, 29108, 36290, 36385, 72580, 72770, 73153, 145540, 146306, 292612, 365765, 731530, 1389907, 1463060, 2779814, 5559628, 6949535, 13899070, 27798140]

約数ペア:

[(1, 27798140), (2, 13899070), (4, 6949535), (5, 5559628), (10, 2779814), (19, 1463060), (20, 1389907), (38, 731530), (76, 365765), (95, 292612), (190, 146306), (191, 145540), (380, 73153), (382, 72770), (383, 72580), (764, 36385), (766, 36290), (955, 29108), (1532, 18145), (1910, 14554), (1915, 14516), (3629, 7660), (3820, 7277), (3830, 7258)]