198535940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{12743}}^1$

素因数の和:12812

約数の個数: 48

約数和(自身を含む): 449608320

約数和(自身を除く): 251072380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 3116, 3895, 7790, 12743, 15580, 25486, 50972, 63715, 127430, 242117, 254860, 484234, 522463, 968468, 1044926, 1210585, 2089852, 2421170, 2612315, 4842340, 5224630, 9926797, 10449260, 19853594, 39707188, 49633985, 99267970, 198535940]

約数ペア:

[(1, 198535940), (2, 99267970), (4, 49633985), (5, 39707188), (10, 19853594), (19, 10449260), (20, 9926797), (38, 5224630), (41, 4842340), (76, 2612315), (82, 2421170), (95, 2089852), (164, 1210585), (190, 1044926), (205, 968468), (380, 522463), (410, 484234), (779, 254860), (820, 242117), (1558, 127430), (3116, 63715), (3895, 50972), (7790, 25486), (12743, 15580)]