397518519280

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1789}}^1\times {\mathrm{6791}}^1$

素因数の和:9002

約数の個数: 80

約数和(自身を含む): 927144676800

約数和(自身を除く): 529626157520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 1789, 2045, 3272, 3578, 4090, 6544, 6791, 7156, 8180, 8945, 13582, 14312, 16360, 17890, 27164, 28624, 32720, 33955, 35780, 54328, 67910, 71560, 108656, 135820, 143120, 271640, 543280, 731701, 1463402, 2777519, 2926804, 3658505, 5555038, 5853608, 7317010, 11110076, 11707216, 12149099, 13887595, 14634020, 22220152, 24298198, 27775190, 29268040, 44440304, 48596396, 55550380, 58536080, 60745495, 97192792, 111100760, 121490990, 194385584, 222201520, 242981980, 485963960, 971927920, 4968981491, 9937962982, 19875925964, 24844907455, 39751851928, 49689814910, 79503703856, 99379629820, 198759259640, 397518519280]

約数ペア:

[(1, 397518519280), (2, 198759259640), (4, 99379629820), (5, 79503703856), (8, 49689814910), (10, 39751851928), (16, 24844907455), (20, 19875925964), (40, 9937962982), (80, 4968981491), (409, 971927920), (818, 485963960), (1636, 242981980), (1789, 222201520), (2045, 194385584), (3272, 121490990), (3578, 111100760), (4090, 97192792), (6544, 60745495), (6791, 58536080), (7156, 55550380), (8180, 48596396), (8945, 44440304), (13582, 29268040), (14312, 27775190), (16360, 24298198), (17890, 22220152), (27164, 14634020), (28624, 13887595), (32720, 12149099), (33955, 11707216), (35780, 11110076), (54328, 7317010), (67910, 5853608), (71560, 5555038), (108656, 3658505), (135820, 2926804), (143120, 2777519), (271640, 1463402), (543280, 731701)]