289390720

素因数分解:

$2^7\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2143}}^1$

素因数の和:2373

約数の個数: 64

約数和(自身を含む): 695427840

約数和(自身を除く): 406037120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 320, 422, 640, 844, 1055, 1688, 2110, 2143, 3376, 4220, 4286, 6752, 8440, 8572, 10715, 13504, 16880, 17144, 21430, 27008, 33760, 34288, 42860, 67520, 68576, 85720, 135040, 137152, 171440, 274304, 342880, 452173, 685760, 904346, 1371520, 1808692, 2260865, 3617384, 4521730, 7234768, 9043460, 14469536, 18086920, 28939072, 36173840, 57878144, 72347680, 144695360, 289390720]

約数ペア:

[(1, 289390720), (2, 144695360), (4, 72347680), (5, 57878144), (8, 36173840), (10, 28939072), (16, 18086920), (20, 14469536), (32, 9043460), (40, 7234768), (64, 4521730), (80, 3617384), (128, 2260865), (160, 1808692), (211, 1371520), (320, 904346), (422, 685760), (640, 452173), (844, 342880), (1055, 274304), (1688, 171440), (2110, 137152), (2143, 135040), (3376, 85720), (4220, 68576), (4286, 67520), (6752, 42860), (8440, 34288), (8572, 33760), (10715, 27008), (13504, 21430), (16880, 17144)]