25341440

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:563

約数の個数: 80

約数和(自身を含む): 64080720

約数和(自身を除く): 38739280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 521, 608, 640, 760, 1042, 1216, 1280, 1520, 2084, 2432, 2560, 2605, 3040, 4168, 4864, 5210, 6080, 8336, 9728, 9899, 10420, 12160, 16672, 19798, 20840, 24320, 33344, 39596, 41680, 48640, 49495, 66688, 79192, 83360, 98990, 133376, 158384, 166720, 197980, 266752, 316768, 333440, 395960, 633536, 666880, 791920, 1267072, 1333760, 1583840, 2534144, 3167680, 5068288, 6335360, 12670720, 25341440]

約数ペア:

[(1, 25341440), (2, 12670720), (4, 6335360), (5, 5068288), (8, 3167680), (10, 2534144), (16, 1583840), (19, 1333760), (20, 1267072), (32, 791920), (38, 666880), (40, 633536), (64, 395960), (76, 333440), (80, 316768), (95, 266752), (128, 197980), (152, 166720), (160, 158384), (190, 133376), (256, 98990), (304, 83360), (320, 79192), (380, 66688), (512, 49495), (521, 48640), (608, 41680), (640, 39596), (760, 33344), (1042, 24320), (1216, 20840), (1280, 19798), (1520, 16672), (2084, 12160), (2432, 10420), (2560, 9899), (2605, 9728), (3040, 8336), (4168, 6080), (4864, 5210)]