255408640

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:190

約数の個数: 160

約数和(自身を含む): 662904000

約数和(自身を除く): 407495360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 59, 64, 76, 80, 89, 95, 118, 128, 152, 160, 178, 190, 236, 256, 295, 304, 320, 356, 380, 445, 472, 512, 590, 608, 640, 712, 760, 890, 944, 1121, 1180, 1216, 1280, 1424, 1520, 1691, 1780, 1888, 2242, 2360, 2432, 2560, 2848, 3040, 3382, 3560, 3776, 4484, 4720, 4864, 5251, 5605, 5696, 6080, 6764, 7120, 7552, 8455, 8968, 9440, 9728, 10502, 11210, 11392, 12160, 13528, 14240, 15104, 16910, 17936, 18880, 21004, 22420, 22784, 24320, 26255, 27056, 28480, 30208, 33820, 35872, 37760, 42008, 44840, 45568, 48640, 52510, 54112, 56960, 67640, 71744, 75520, 84016, 89680, 99769, 105020, 108224, 113920, 135280, 143488, 151040, 168032, 179360, 199538, 210040, 216448, 227840, 270560, 286976, 336064, 358720, 399076, 420080, 432896, 498845, 541120, 573952, 672128, 717440, 798152, 840160, 865792, 997690, 1082240, 1344256, 1434880, 1596304, 1680320, 1995380, 2164480, 2688512, 2869760, 3192608, 3360640, 3990760, 4328960, 6385216, 6721280, 7981520, 12770432, 13442560, 15963040, 25540864, 31926080, 51081728, 63852160, 127704320, 255408640]

約数ペア:

[(1, 255408640), (2, 127704320), (4, 63852160), (5, 51081728), (8, 31926080), (10, 25540864), (16, 15963040), (19, 13442560), (20, 12770432), (32, 7981520), (38, 6721280), (40, 6385216), (59, 4328960), (64, 3990760), (76, 3360640), (80, 3192608), (89, 2869760), (95, 2688512), (118, 2164480), (128, 1995380), (152, 1680320), (160, 1596304), (178, 1434880), (190, 1344256), (236, 1082240), (256, 997690), (295, 865792), (304, 840160), (320, 798152), (356, 717440), (380, 672128), (445, 573952), (472, 541120), (512, 498845), (590, 432896), (608, 420080), (640, 399076), (712, 358720), (760, 336064), (890, 286976), (944, 270560), (1121, 227840), (1180, 216448), (1216, 210040), (1280, 199538), (1424, 179360), (1520, 168032), (1691, 151040), (1780, 143488), (1888, 135280), (2242, 113920), (2360, 108224), (2432, 105020), (2560, 99769), (2848, 89680), (3040, 84016), (3382, 75520), (3560, 71744), (3776, 67640), (4484, 56960), (4720, 54112), (4864, 52510), (5251, 48640), (5605, 45568), (5696, 44840), (6080, 42008), (6764, 37760), (7120, 35872), (7552, 33820), (8455, 30208), (8968, 28480), (9440, 27056), (9728, 26255), (10502, 24320), (11210, 22784), (11392, 22420), (12160, 21004), (13528, 18880), (14240, 17936), (15104, 16910)]