19645010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:879

約数の個数: 64

約数和(自身を含む): 45563904

約数和(自身を除く): 25918894

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 31, 35, 55, 62, 70, 77, 110, 154, 155, 217, 310, 341, 385, 434, 682, 770, 823, 1085, 1646, 1705, 2170, 2387, 3410, 4115, 4774, 5761, 8230, 9053, 11522, 11935, 18106, 23870, 25513, 28805, 45265, 51026, 57610, 63371, 90530, 126742, 127565, 178591, 255130, 280643, 316855, 357182, 561286, 633710, 892955, 1403215, 1785910, 1964501, 2806430, 3929002, 9822505, 19645010]

約数ペア:

[(1, 19645010), (2, 9822505), (5, 3929002), (7, 2806430), (10, 1964501), (11, 1785910), (14, 1403215), (22, 892955), (31, 633710), (35, 561286), (55, 357182), (62, 316855), (70, 280643), (77, 255130), (110, 178591), (154, 127565), (155, 126742), (217, 90530), (310, 63371), (341, 57610), (385, 51026), (434, 45265), (682, 28805), (770, 25513), (823, 23870), (1085, 18106), (1646, 11935), (1705, 11522), (2170, 9053), (2387, 8230), (3410, 5761), (4115, 4774)]