12840413440

素因数分解:

$2^8\times 5^1\times {\mathrm{211}}^1\times {\mathrm{47543}}^1$

素因数の和:47775

約数の個数: 72

約数和(自身を含む): 30903219648

約数和(自身を除く): 18062806208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 256, 320, 422, 640, 844, 1055, 1280, 1688, 2110, 3376, 4220, 6752, 8440, 13504, 16880, 27008, 33760, 47543, 54016, 67520, 95086, 135040, 190172, 237715, 270080, 380344, 475430, 760688, 950860, 1521376, 1901720, 3042752, 3803440, 6085504, 7606880, 10031573, 12171008, 15213760, 20063146, 30427520, 40126292, 50157865, 60855040, 80252584, 100315730, 160505168, 200631460, 321010336, 401262920, 642020672, 802525840, 1284041344, 1605051680, 2568082688, 3210103360, 6420206720, 12840413440]

約数ペア:

[(1, 12840413440), (2, 6420206720), (4, 3210103360), (5, 2568082688), (8, 1605051680), (10, 1284041344), (16, 802525840), (20, 642020672), (32, 401262920), (40, 321010336), (64, 200631460), (80, 160505168), (128, 100315730), (160, 80252584), (211, 60855040), (256, 50157865), (320, 40126292), (422, 30427520), (640, 20063146), (844, 15213760), (1055, 12171008), (1280, 10031573), (1688, 7606880), (2110, 6085504), (3376, 3803440), (4220, 3042752), (6752, 1901720), (8440, 1521376), (13504, 950860), (16880, 760688), (27008, 475430), (33760, 380344), (47543, 270080), (54016, 237715), (67520, 190172), (95086, 135040)]