20196840140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{57283}}^1$

素因数の和:57387

約数の個数: 72

約数和(自身を含む): 45794433552

約数和(自身を除く): 25597593412

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 289, 305, 340, 578, 610, 1037, 1156, 1220, 1445, 2074, 2890, 4148, 5185, 5780, 10370, 17629, 20740, 35258, 57283, 70516, 88145, 114566, 176290, 229132, 286415, 352580, 572830, 973811, 1145660, 1947622, 3494263, 3895244, 4869055, 6988526, 9738110, 13977052, 16554787, 17471315, 19476220, 33109574, 34942630, 59402471, 66219148, 69885260, 82773935, 118804942, 165547870, 237609884, 297012355, 331095740, 594024710, 1009842007, 1188049420, 2019684014, 4039368028, 5049210035, 10098420070, 20196840140]

約数ペア:

[(1, 20196840140), (2, 10098420070), (4, 5049210035), (5, 4039368028), (10, 2019684014), (17, 1188049420), (20, 1009842007), (34, 594024710), (61, 331095740), (68, 297012355), (85, 237609884), (122, 165547870), (170, 118804942), (244, 82773935), (289, 69885260), (305, 66219148), (340, 59402471), (578, 34942630), (610, 33109574), (1037, 19476220), (1156, 17471315), (1220, 16554787), (1445, 13977052), (2074, 9738110), (2890, 6988526), (4148, 4869055), (5185, 3895244), (5780, 3494263), (10370, 1947622), (17629, 1145660), (20740, 973811), (35258, 572830), (57283, 352580), (70516, 286415), (88145, 229132), (114566, 176290)]