12889600

素因数分解:

$2^9\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:100

約数の個数: 120

約数和(自身を含む): 34250040

約数和(自身を除く): 21360440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 53, 64, 76, 80, 95, 100, 106, 128, 152, 160, 190, 200, 212, 256, 265, 304, 320, 380, 400, 424, 475, 512, 530, 608, 640, 760, 800, 848, 950, 1007, 1060, 1216, 1280, 1325, 1520, 1600, 1696, 1900, 2014, 2120, 2432, 2560, 2650, 3040, 3200, 3392, 3800, 4028, 4240, 4864, 5035, 5300, 6080, 6400, 6784, 7600, 8056, 8480, 9728, 10070, 10600, 12160, 12800, 13568, 15200, 16112, 16960, 20140, 21200, 24320, 25175, 27136, 30400, 32224, 33920, 40280, 42400, 48640, 50350, 60800, 64448, 67840, 80560, 84800, 100700, 121600, 128896, 135680, 161120, 169600, 201400, 243200, 257792, 322240, 339200, 402800, 515584, 644480, 678400, 805600, 1288960, 1611200, 2577920, 3222400, 6444800, 12889600]

約数ペア:

[(1, 12889600), (2, 6444800), (4, 3222400), (5, 2577920), (8, 1611200), (10, 1288960), (16, 805600), (19, 678400), (20, 644480), (25, 515584), (32, 402800), (38, 339200), (40, 322240), (50, 257792), (53, 243200), (64, 201400), (76, 169600), (80, 161120), (95, 135680), (100, 128896), (106, 121600), (128, 100700), (152, 84800), (160, 80560), (190, 67840), (200, 64448), (212, 60800), (256, 50350), (265, 48640), (304, 42400), (320, 40280), (380, 33920), (400, 32224), (424, 30400), (475, 27136), (512, 25175), (530, 24320), (608, 21200), (640, 20140), (760, 16960), (800, 16112), (848, 15200), (950, 13568), (1007, 12800), (1060, 12160), (1216, 10600), (1280, 10070), (1325, 9728), (1520, 8480), (1600, 8056), (1696, 7600), (1900, 6784), (2014, 6400), (2120, 6080), (2432, 5300), (2560, 5035), (2650, 4864), (3040, 4240), (3200, 4028), (3392, 3800)]