156951278975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:885

約数の個数: 96

約数和(自身を含む): 214885996416

約数和(自身を除く): 57934717441

約数列:

[1, 5, 17, 25, 41, 85, 103, 157, 205, 425, 515, 557, 697, 785, 1025, 1751, 2575, 2669, 2785, 3485, 3925, 4223, 6437, 8755, 9469, 13345, 13925, 16171, 17425, 21115, 22837, 32185, 43775, 47345, 57371, 66725, 71791, 80855, 87449, 105575, 109429, 114185, 160925, 236725, 274907, 286855, 358955, 388229, 404275, 437245, 547145, 570925, 663011, 975307, 1374535, 1434275, 1486633, 1794775, 1941145, 2186225, 2352211, 2735725, 3315055, 3585409, 4876535, 6872675, 7433165, 9007247, 9705725, 11271187, 11761055, 16575275, 17927045, 24382675, 37165825, 39987587, 45036235, 56355935, 58805275, 60951953, 89635225, 153123199, 199937935, 225181175, 281779675, 304759765, 369297127, 765615995, 999689675, 1523798825, 1846485635, 3828079975, 6278051159, 9232428175, 31390255795, 156951278975]

約数ペア:

[(1, 156951278975), (5, 31390255795), (17, 9232428175), (25, 6278051159), (41, 3828079975), (85, 1846485635), (103, 1523798825), (157, 999689675), (205, 765615995), (425, 369297127), (515, 304759765), (557, 281779675), (697, 225181175), (785, 199937935), (1025, 153123199), (1751, 89635225), (2575, 60951953), (2669, 58805275), (2785, 56355935), (3485, 45036235), (3925, 39987587), (4223, 37165825), (6437, 24382675), (8755, 17927045), (9469, 16575275), (13345, 11761055), (13925, 11271187), (16171, 9705725), (17425, 9007247), (21115, 7433165), (22837, 6872675), (32185, 4876535), (43775, 3585409), (47345, 3315055), (57371, 2735725), (66725, 2352211), (71791, 2186225), (80855, 1941145), (87449, 1794775), (105575, 1486633), (109429, 1434275), (114185, 1374535), (160925, 975307), (236725, 663011), (274907, 570925), (286855, 547145), (358955, 437245), (388229, 404275)]