257482880

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{13873}}^1$

素因数の和:13921

約数の個数: 64

約数和(自身を含む): 636816600

約数和(自身を除く): 379333720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1160, 1856, 2320, 3712, 4640, 9280, 13873, 18560, 27746, 55492, 69365, 110984, 138730, 221968, 277460, 402317, 443936, 554920, 804634, 887872, 1109840, 1609268, 1775744, 2011585, 2219680, 3218536, 4023170, 4439360, 6437072, 8046340, 8878720, 12874144, 16092680, 25748288, 32185360, 51496576, 64370720, 128741440, 257482880]

約数ペア:

[(1, 257482880), (2, 128741440), (4, 64370720), (5, 51496576), (8, 32185360), (10, 25748288), (16, 16092680), (20, 12874144), (29, 8878720), (32, 8046340), (40, 6437072), (58, 4439360), (64, 4023170), (80, 3218536), (116, 2219680), (128, 2011585), (145, 1775744), (160, 1609268), (232, 1109840), (290, 887872), (320, 804634), (464, 554920), (580, 443936), (640, 402317), (928, 277460), (1160, 221968), (1856, 138730), (2320, 110984), (3712, 69365), (4640, 55492), (9280, 27746), (13873, 18560)]