201612800

素因数分解:

$2^9\times 5^2\times {\mathrm{19}}^1\times {\mathrm{829}}^1$

素因数の和:876

約数の個数: 120

約数和(自身を含む): 526435800

約数和(自身を除く): 324823000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 128, 152, 160, 190, 200, 256, 304, 320, 380, 400, 475, 512, 608, 640, 760, 800, 829, 950, 1216, 1280, 1520, 1600, 1658, 1900, 2432, 2560, 3040, 3200, 3316, 3800, 4145, 4864, 6080, 6400, 6632, 7600, 8290, 9728, 12160, 12800, 13264, 15200, 15751, 16580, 20725, 24320, 26528, 30400, 31502, 33160, 41450, 48640, 53056, 60800, 63004, 66320, 78755, 82900, 106112, 121600, 126008, 132640, 157510, 165800, 212224, 243200, 252016, 265280, 315020, 331600, 393775, 424448, 504032, 530560, 630040, 663200, 787550, 1008064, 1061120, 1260080, 1326400, 1575100, 2016128, 2122240, 2520160, 2652800, 3150200, 4032256, 5040320, 5305600, 6300400, 8064512, 10080640, 10611200, 12600800, 20161280, 25201600, 40322560, 50403200, 100806400, 201612800]

約数ペア:

[(1, 201612800), (2, 100806400), (4, 50403200), (5, 40322560), (8, 25201600), (10, 20161280), (16, 12600800), (19, 10611200), (20, 10080640), (25, 8064512), (32, 6300400), (38, 5305600), (40, 5040320), (50, 4032256), (64, 3150200), (76, 2652800), (80, 2520160), (95, 2122240), (100, 2016128), (128, 1575100), (152, 1326400), (160, 1260080), (190, 1061120), (200, 1008064), (256, 787550), (304, 663200), (320, 630040), (380, 530560), (400, 504032), (475, 424448), (512, 393775), (608, 331600), (640, 315020), (760, 265280), (800, 252016), (829, 243200), (950, 212224), (1216, 165800), (1280, 157510), (1520, 132640), (1600, 126008), (1658, 121600), (1900, 106112), (2432, 82900), (2560, 78755), (3040, 66320), (3200, 63004), (3316, 60800), (3800, 53056), (4145, 48640), (4864, 41450), (6080, 33160), (6400, 31502), (6632, 30400), (7600, 26528), (8290, 24320), (9728, 20725), (12160, 16580), (12800, 15751), (13264, 15200)]