19799251160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{242519}}^1$

素因数の和:242700

約数の個数: 64

約数和(自身を含む): 48280881600

約数和(自身を除く): 28481630440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 157, 260, 314, 520, 628, 785, 1256, 1570, 2041, 3140, 4082, 6280, 8164, 10205, 16328, 20410, 40820, 81640, 242519, 485038, 970076, 1212595, 1940152, 2425190, 3152747, 4850380, 6305494, 9700760, 12610988, 15763735, 25221976, 31527470, 38075483, 63054940, 76150966, 126109880, 152301932, 190377415, 304603864, 380754830, 494981279, 761509660, 989962558, 1523019320, 1979925116, 2474906395, 3959850232, 4949812790, 9899625580, 19799251160]

約数ペア:

[(1, 19799251160), (2, 9899625580), (4, 4949812790), (5, 3959850232), (8, 2474906395), (10, 1979925116), (13, 1523019320), (20, 989962558), (26, 761509660), (40, 494981279), (52, 380754830), (65, 304603864), (104, 190377415), (130, 152301932), (157, 126109880), (260, 76150966), (314, 63054940), (520, 38075483), (628, 31527470), (785, 25221976), (1256, 15763735), (1570, 12610988), (2041, 9700760), (3140, 6305494), (4082, 4850380), (6280, 3152747), (8164, 2425190), (10205, 1940152), (16328, 1212595), (20410, 970076), (40820, 485038), (81640, 242519)]