205191280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1$

素因数の和:311

約数の個数: 160

約数和(自身を含む): 578534400

約数和(自身を除く): 373343120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 89, 92, 112, 115, 140, 161, 178, 179, 184, 230, 280, 322, 356, 358, 368, 445, 460, 560, 623, 644, 712, 716, 805, 890, 895, 920, 1246, 1253, 1288, 1424, 1432, 1610, 1780, 1790, 1840, 2047, 2492, 2506, 2576, 2864, 3115, 3220, 3560, 3580, 4094, 4117, 4984, 5012, 6230, 6265, 6440, 7120, 7160, 8188, 8234, 9968, 10024, 10235, 12460, 12530, 12880, 14320, 14329, 15931, 16376, 16468, 20048, 20470, 20585, 24920, 25060, 28658, 28819, 31862, 32752, 32936, 40940, 41170, 49840, 50120, 57316, 57638, 63724, 65872, 71645, 79655, 81880, 82340, 100240, 111517, 114632, 115276, 127448, 143290, 144095, 159310, 163760, 164680, 223034, 229264, 230552, 254896, 286580, 288190, 318620, 329360, 366413, 446068, 461104, 557585, 573160, 576380, 637240, 732826, 892136, 1115170, 1146320, 1152760, 1274480, 1465652, 1784272, 1832065, 2230340, 2305520, 2564891, 2931304, 3664130, 4460680, 5129782, 5862608, 7328260, 8921360, 10259564, 12824455, 14656520, 20519128, 25648910, 29313040, 41038256, 51297820, 102595640, 205191280]

約数ペア:

[(1, 205191280), (2, 102595640), (4, 51297820), (5, 41038256), (7, 29313040), (8, 25648910), (10, 20519128), (14, 14656520), (16, 12824455), (20, 10259564), (23, 8921360), (28, 7328260), (35, 5862608), (40, 5129782), (46, 4460680), (56, 3664130), (70, 2931304), (80, 2564891), (89, 2305520), (92, 2230340), (112, 1832065), (115, 1784272), (140, 1465652), (161, 1274480), (178, 1152760), (179, 1146320), (184, 1115170), (230, 892136), (280, 732826), (322, 637240), (356, 576380), (358, 573160), (368, 557585), (445, 461104), (460, 446068), (560, 366413), (623, 329360), (644, 318620), (712, 288190), (716, 286580), (805, 254896), (890, 230552), (895, 229264), (920, 223034), (1246, 164680), (1253, 163760), (1288, 159310), (1424, 144095), (1432, 143290), (1610, 127448), (1780, 115276), (1790, 114632), (1840, 111517), (2047, 100240), (2492, 82340), (2506, 81880), (2576, 79655), (2864, 71645), (3115, 65872), (3220, 63724), (3560, 57638), (3580, 57316), (4094, 50120), (4117, 49840), (4984, 41170), (5012, 40940), (6230, 32936), (6265, 32752), (6440, 31862), (7120, 28819), (7160, 28658), (8188, 25060), (8234, 24920), (9968, 20585), (10024, 20470), (10235, 20048), (12460, 16468), (12530, 16376), (12880, 15931), (14320, 14329)]