20151040

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 59750208

約数和(自身を除く): 39599168

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 173, 182, 208, 224, 256, 260, 280, 320, 346, 364, 416, 448, 455, 520, 560, 640, 692, 728, 832, 865, 896, 910, 1040, 1120, 1211, 1280, 1384, 1456, 1664, 1730, 1792, 1820, 2080, 2240, 2249, 2422, 2768, 2912, 3328, 3460, 3640, 4160, 4480, 4498, 4844, 5536, 5824, 6055, 6920, 7280, 8320, 8960, 8996, 9688, 11072, 11245, 11648, 12110, 13840, 14560, 15743, 16640, 17992, 19376, 22144, 22490, 23296, 24220, 27680, 29120, 31486, 35984, 38752, 44288, 44980, 48440, 55360, 58240, 62972, 71968, 77504, 78715, 89960, 96880, 110720, 116480, 125944, 143936, 155008, 157430, 179920, 193760, 221440, 251888, 287872, 310016, 314860, 359840, 387520, 503776, 575744, 629720, 719680, 775040, 1007552, 1259440, 1439360, 1550080, 2015104, 2518880, 2878720, 4030208, 5037760, 10075520, 20151040]

約数ペア:

[(1, 20151040), (2, 10075520), (4, 5037760), (5, 4030208), (7, 2878720), (8, 2518880), (10, 2015104), (13, 1550080), (14, 1439360), (16, 1259440), (20, 1007552), (26, 775040), (28, 719680), (32, 629720), (35, 575744), (40, 503776), (52, 387520), (56, 359840), (64, 314860), (65, 310016), (70, 287872), (80, 251888), (91, 221440), (104, 193760), (112, 179920), (128, 157430), (130, 155008), (140, 143936), (160, 125944), (173, 116480), (182, 110720), (208, 96880), (224, 89960), (256, 78715), (260, 77504), (280, 71968), (320, 62972), (346, 58240), (364, 55360), (416, 48440), (448, 44980), (455, 44288), (520, 38752), (560, 35984), (640, 31486), (692, 29120), (728, 27680), (832, 24220), (865, 23296), (896, 22490), (910, 22144), (1040, 19376), (1120, 17992), (1211, 16640), (1280, 15743), (1384, 14560), (1456, 13840), (1664, 12110), (1730, 11648), (1792, 11245), (1820, 11072), (2080, 9688), (2240, 8996), (2249, 8960), (2422, 8320), (2768, 7280), (2912, 6920), (3328, 6055), (3460, 5824), (3640, 5536), (4160, 4844), (4480, 4498)]