168812800

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2029}}^1$

素因数の和:2068

約数の個数: 108

約数和(自身を含む): 450201220

約数和(自身を除く): 281388420

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 520, 640, 650, 800, 832, 1040, 1280, 1300, 1600, 1664, 2029, 2080, 2600, 3200, 3328, 4058, 4160, 5200, 6400, 8116, 8320, 10145, 10400, 16232, 16640, 20290, 20800, 26377, 32464, 40580, 41600, 50725, 52754, 64928, 81160, 83200, 101450, 105508, 129856, 131885, 162320, 202900, 211016, 259712, 263770, 324640, 405800, 422032, 519424, 527540, 649280, 659425, 811600, 844064, 1055080, 1298560, 1318850, 1623200, 1688128, 2110160, 2597120, 2637700, 3246400, 3376256, 4220320, 5275400, 6492800, 6752512, 8440640, 10550800, 12985600, 16881280, 21101600, 33762560, 42203200, 84406400, 168812800]

約数ペア:

[(1, 168812800), (2, 84406400), (4, 42203200), (5, 33762560), (8, 21101600), (10, 16881280), (13, 12985600), (16, 10550800), (20, 8440640), (25, 6752512), (26, 6492800), (32, 5275400), (40, 4220320), (50, 3376256), (52, 3246400), (64, 2637700), (65, 2597120), (80, 2110160), (100, 1688128), (104, 1623200), (128, 1318850), (130, 1298560), (160, 1055080), (200, 844064), (208, 811600), (256, 659425), (260, 649280), (320, 527540), (325, 519424), (400, 422032), (416, 405800), (520, 324640), (640, 263770), (650, 259712), (800, 211016), (832, 202900), (1040, 162320), (1280, 131885), (1300, 129856), (1600, 105508), (1664, 101450), (2029, 83200), (2080, 81160), (2600, 64928), (3200, 52754), (3328, 50725), (4058, 41600), (4160, 40580), (5200, 32464), (6400, 26377), (8116, 20800), (8320, 20290), (10145, 16640), (10400, 16232)]