16680451840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{12689}}^1$

素因数の和:12802

約数の個数: 144

約数和(自身を含む): 43576444800

約数和(自身を除く): 26895992960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 79, 80, 104, 128, 130, 158, 160, 208, 256, 260, 316, 320, 395, 416, 520, 632, 640, 790, 832, 1027, 1040, 1264, 1280, 1580, 1664, 2054, 2080, 2528, 3160, 3328, 4108, 4160, 5056, 5135, 6320, 8216, 8320, 10112, 10270, 12640, 12689, 16432, 16640, 20224, 20540, 25280, 25378, 32864, 41080, 50560, 50756, 63445, 65728, 82160, 101120, 101512, 126890, 131456, 164320, 164957, 203024, 253780, 262912, 328640, 329914, 406048, 507560, 657280, 659828, 812096, 824785, 1002431, 1015120, 1314560, 1319656, 1624192, 1649570, 2004862, 2030240, 2639312, 3248384, 3299140, 4009724, 4060480, 5012155, 5278624, 6598280, 8019448, 8120960, 10024310, 10557248, 13031603, 13196560, 16038896, 16241920, 20048620, 21114496, 26063206, 26393120, 32077792, 40097240, 42228992, 52126412, 52786240, 64155584, 65158015, 80194480, 104252824, 105572480, 128311168, 130316030, 160388960, 208505648, 211144960, 256622336, 260632060, 320777920, 417011296, 521264120, 641555840, 834022592, 1042528240, 1283111680, 1668045184, 2085056480, 3336090368, 4170112960, 8340225920, 16680451840]

約数ペア:

[(1, 16680451840), (2, 8340225920), (4, 4170112960), (5, 3336090368), (8, 2085056480), (10, 1668045184), (13, 1283111680), (16, 1042528240), (20, 834022592), (26, 641555840), (32, 521264120), (40, 417011296), (52, 320777920), (64, 260632060), (65, 256622336), (79, 211144960), (80, 208505648), (104, 160388960), (128, 130316030), (130, 128311168), (158, 105572480), (160, 104252824), (208, 80194480), (256, 65158015), (260, 64155584), (316, 52786240), (320, 52126412), (395, 42228992), (416, 40097240), (520, 32077792), (632, 26393120), (640, 26063206), (790, 21114496), (832, 20048620), (1027, 16241920), (1040, 16038896), (1264, 13196560), (1280, 13031603), (1580, 10557248), (1664, 10024310), (2054, 8120960), (2080, 8019448), (2528, 6598280), (3160, 5278624), (3328, 5012155), (4108, 4060480), (4160, 4009724), (5056, 3299140), (5135, 3248384), (6320, 2639312), (8216, 2030240), (8320, 2004862), (10112, 1649570), (10270, 1624192), (12640, 1319656), (12689, 1314560), (16432, 1015120), (16640, 1002431), (20224, 824785), (20540, 812096), (25280, 659828), (25378, 657280), (32864, 507560), (41080, 406048), (50560, 329914), (50756, 328640), (63445, 262912), (65728, 253780), (82160, 203024), (101120, 164957), (101512, 164320), (126890, 131456)]