19151560

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 25845560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 61, 94, 122, 167, 188, 235, 244, 305, 334, 376, 470, 488, 610, 668, 835, 940, 1220, 1336, 1670, 1880, 2440, 2867, 3340, 5734, 6680, 7849, 10187, 11468, 14335, 15698, 20374, 22936, 28670, 31396, 39245, 40748, 50935, 57340, 62792, 78490, 81496, 101870, 114680, 156980, 203740, 313960, 407480, 478789, 957578, 1915156, 2393945, 3830312, 4787890, 9575780, 19151560]

約数ペア:

[(1, 19151560), (2, 9575780), (4, 4787890), (5, 3830312), (8, 2393945), (10, 1915156), (20, 957578), (40, 478789), (47, 407480), (61, 313960), (94, 203740), (122, 156980), (167, 114680), (188, 101870), (235, 81496), (244, 78490), (305, 62792), (334, 57340), (376, 50935), (470, 40748), (488, 39245), (610, 31396), (668, 28670), (835, 22936), (940, 20374), (1220, 15698), (1336, 14335), (1670, 11468), (1880, 10187), (2440, 7849), (2867, 6680), (3340, 5734)]