20180875960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1\times {\mathrm{2273}}^1$

素因数の和:3185

約数の個数: 128

約数和(自身を含む): 53381877120

約数和(自身を除く): 33201001160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 857, 1036, 1295, 1480, 1714, 2072, 2273, 2590, 3428, 4285, 4546, 5180, 5999, 6856, 8570, 9092, 10360, 11365, 11998, 15911, 17140, 18184, 22730, 23996, 29995, 31709, 31822, 34280, 45460, 47992, 59990, 63418, 63644, 79555, 84101, 90920, 119980, 126836, 127288, 158545, 159110, 168202, 221963, 239960, 253672, 317090, 318220, 336404, 420505, 443926, 588707, 634180, 636440, 672808, 841010, 887852, 1109815, 1177414, 1268360, 1682020, 1775704, 1947961, 2219630, 2354828, 2943535, 3364040, 3895922, 4439260, 4709656, 5887070, 7791844, 8878520, 9739805, 11774140, 13635727, 15583688, 19479610, 23548280, 27271454, 38959220, 54542908, 68178635, 72074557, 77918440, 109085816, 136357270, 144149114, 272714540, 288298228, 360372785, 504521899, 545429080, 576596456, 720745570, 1009043798, 1441491140, 2018087596, 2522609495, 2882982280, 4036175192, 5045218990, 10090437980, 20180875960]

約数ペア:

[(1, 20180875960), (2, 10090437980), (4, 5045218990), (5, 4036175192), (7, 2882982280), (8, 2522609495), (10, 2018087596), (14, 1441491140), (20, 1009043798), (28, 720745570), (35, 576596456), (37, 545429080), (40, 504521899), (56, 360372785), (70, 288298228), (74, 272714540), (140, 144149114), (148, 136357270), (185, 109085816), (259, 77918440), (280, 72074557), (296, 68178635), (370, 54542908), (518, 38959220), (740, 27271454), (857, 23548280), (1036, 19479610), (1295, 15583688), (1480, 13635727), (1714, 11774140), (2072, 9739805), (2273, 8878520), (2590, 7791844), (3428, 5887070), (4285, 4709656), (4546, 4439260), (5180, 3895922), (5999, 3364040), (6856, 2943535), (8570, 2354828), (9092, 2219630), (10360, 1947961), (11365, 1775704), (11998, 1682020), (15911, 1268360), (17140, 1177414), (18184, 1109815), (22730, 887852), (23996, 841010), (29995, 672808), (31709, 636440), (31822, 634180), (34280, 588707), (45460, 443926), (47992, 420505), (59990, 336404), (63418, 318220), (63644, 317090), (79555, 253672), (84101, 239960), (90920, 221963), (119980, 168202), (126836, 159110), (127288, 158545)]