19907665120

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{362749}}^1$

素因数の和:362785

約数の個数: 96

約数和(自身を含む): 54847800000

約数和(自身を除く): 34940134880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1568, 1715, 1960, 2744, 3430, 3920, 5488, 6860, 7840, 10976, 13720, 27440, 54880, 362749, 725498, 1450996, 1813745, 2539243, 2901992, 3627490, 5078486, 5803984, 7254980, 10156972, 11607968, 12696215, 14509960, 17774701, 20313944, 25392430, 29019920, 35549402, 40627888, 50784860, 58039840, 71098804, 81255776, 88873505, 101569720, 124422907, 142197608, 177747010, 203139440, 248845814, 284395216, 355494020, 406278880, 497691628, 568790432, 622114535, 710988040, 995383256, 1244229070, 1421976080, 1990766512, 2488458140, 2843952160, 3981533024, 4976916280, 9953832560, 19907665120]

約数ペア:

[(1, 19907665120), (2, 9953832560), (4, 4976916280), (5, 3981533024), (7, 2843952160), (8, 2488458140), (10, 1990766512), (14, 1421976080), (16, 1244229070), (20, 995383256), (28, 710988040), (32, 622114535), (35, 568790432), (40, 497691628), (49, 406278880), (56, 355494020), (70, 284395216), (80, 248845814), (98, 203139440), (112, 177747010), (140, 142197608), (160, 124422907), (196, 101569720), (224, 88873505), (245, 81255776), (280, 71098804), (343, 58039840), (392, 50784860), (490, 40627888), (560, 35549402), (686, 29019920), (784, 25392430), (980, 20313944), (1120, 17774701), (1372, 14509960), (1568, 12696215), (1715, 11607968), (1960, 10156972), (2744, 7254980), (3430, 5803984), (3920, 5078486), (5488, 3627490), (6860, 2901992), (7840, 2539243), (10976, 1813745), (13720, 1450996), (27440, 725498), (54880, 362749)]