19976320

素因数分解:

$2^7\times 5^1\times 7^4\times {\mathrm{13}}^1$

素因数の和:60

約数の個数: 160

約数和(自身を含む): 59997420

約数和(自身を除く): 40021100

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 320, 343, 364, 392, 416, 448, 455, 490, 520, 560, 637, 640, 686, 728, 784, 832, 896, 910, 980, 1040, 1120, 1274, 1372, 1456, 1568, 1664, 1715, 1820, 1960, 2080, 2240, 2401, 2548, 2744, 2912, 3136, 3185, 3430, 3640, 3920, 4160, 4459, 4480, 4802, 5096, 5488, 5824, 6272, 6370, 6860, 7280, 7840, 8320, 8918, 9604, 10192, 10976, 11648, 12005, 12740, 13720, 14560, 15680, 17836, 19208, 20384, 21952, 22295, 24010, 25480, 27440, 29120, 31213, 31360, 35672, 38416, 40768, 43904, 44590, 48020, 50960, 54880, 58240, 62426, 71344, 76832, 81536, 89180, 96040, 101920, 109760, 124852, 142688, 153664, 156065, 178360, 192080, 203840, 219520, 249704, 285376, 307328, 312130, 356720, 384160, 407680, 499408, 570752, 624260, 713440, 768320, 998816, 1248520, 1426880, 1536640, 1997632, 2497040, 2853760, 3995264, 4994080, 9988160, 19976320]

約数ペア:

[(1, 19976320), (2, 9988160), (4, 4994080), (5, 3995264), (7, 2853760), (8, 2497040), (10, 1997632), (13, 1536640), (14, 1426880), (16, 1248520), (20, 998816), (26, 768320), (28, 713440), (32, 624260), (35, 570752), (40, 499408), (49, 407680), (52, 384160), (56, 356720), (64, 312130), (65, 307328), (70, 285376), (80, 249704), (91, 219520), (98, 203840), (104, 192080), (112, 178360), (128, 156065), (130, 153664), (140, 142688), (160, 124852), (182, 109760), (196, 101920), (208, 96040), (224, 89180), (245, 81536), (260, 76832), (280, 71344), (320, 62426), (343, 58240), (364, 54880), (392, 50960), (416, 48020), (448, 44590), (455, 43904), (490, 40768), (520, 38416), (560, 35672), (637, 31360), (640, 31213), (686, 29120), (728, 27440), (784, 25480), (832, 24010), (896, 22295), (910, 21952), (980, 20384), (1040, 19208), (1120, 17836), (1274, 15680), (1372, 14560), (1456, 13720), (1568, 12740), (1664, 12005), (1715, 11648), (1820, 10976), (1960, 10192), (2080, 9604), (2240, 8918), (2401, 8320), (2548, 7840), (2744, 7280), (2912, 6860), (3136, 6370), (3185, 6272), (3430, 5824), (3640, 5488), (3920, 5096), (4160, 4802), (4459, 4480)]