19495280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1174

約数の個数: 80

約数和(自身を含む): 53520384

約数和(自身を除く): 34025104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1123, 1240, 1736, 2170, 2246, 2480, 3472, 4340, 4492, 5615, 7861, 8680, 8984, 11230, 15722, 17360, 17968, 22460, 31444, 34813, 39305, 44920, 62888, 69626, 78610, 89840, 125776, 139252, 157220, 174065, 243691, 278504, 314440, 348130, 487382, 557008, 628880, 696260, 974764, 1218455, 1392520, 1949528, 2436910, 2785040, 3899056, 4873820, 9747640, 19495280]

約数ペア:

[(1, 19495280), (2, 9747640), (4, 4873820), (5, 3899056), (7, 2785040), (8, 2436910), (10, 1949528), (14, 1392520), (16, 1218455), (20, 974764), (28, 696260), (31, 628880), (35, 557008), (40, 487382), (56, 348130), (62, 314440), (70, 278504), (80, 243691), (112, 174065), (124, 157220), (140, 139252), (155, 125776), (217, 89840), (248, 78610), (280, 69626), (310, 62888), (434, 44920), (496, 39305), (560, 34813), (620, 31444), (868, 22460), (1085, 17968), (1123, 17360), (1240, 15722), (1736, 11230), (2170, 8984), (2246, 8680), (2480, 7861), (3472, 5615), (4340, 4492)]