25080320

素因数分解:

$2^9\times 5^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:221

約数の個数: 80

約数和(自身を含む): 61355448

約数和(自身を除く): 36275128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 101, 128, 160, 194, 202, 256, 320, 388, 404, 485, 505, 512, 640, 776, 808, 970, 1010, 1280, 1552, 1616, 1940, 2020, 2560, 3104, 3232, 3880, 4040, 6208, 6464, 7760, 8080, 9797, 12416, 12928, 15520, 16160, 19594, 24832, 25856, 31040, 32320, 39188, 48985, 49664, 51712, 62080, 64640, 78376, 97970, 124160, 129280, 156752, 195940, 248320, 258560, 313504, 391880, 627008, 783760, 1254016, 1567520, 2508032, 3135040, 5016064, 6270080, 12540160, 25080320]

約数ペア:

[(1, 25080320), (2, 12540160), (4, 6270080), (5, 5016064), (8, 3135040), (10, 2508032), (16, 1567520), (20, 1254016), (32, 783760), (40, 627008), (64, 391880), (80, 313504), (97, 258560), (101, 248320), (128, 195940), (160, 156752), (194, 129280), (202, 124160), (256, 97970), (320, 78376), (388, 64640), (404, 62080), (485, 51712), (505, 49664), (512, 48985), (640, 39188), (776, 32320), (808, 31040), (970, 25856), (1010, 24832), (1280, 19594), (1552, 16160), (1616, 15520), (1940, 12928), (2020, 12416), (2560, 9797), (3104, 8080), (3232, 7760), (3880, 6464), (4040, 6208)]