15999840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:333

約数の個数: 144

約数和(自身を含む): 56137536

約数和(自身を除く): 40137696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 205, 240, 246, 271, 288, 328, 360, 369, 410, 480, 492, 542, 615, 656, 720, 738, 813, 820, 984, 1084, 1230, 1312, 1355, 1440, 1476, 1626, 1640, 1845, 1968, 2168, 2439, 2460, 2710, 2952, 3252, 3280, 3690, 3936, 4065, 4336, 4878, 4920, 5420, 5904, 6504, 6560, 7380, 8130, 8672, 9756, 9840, 10840, 11111, 11808, 12195, 13008, 14760, 16260, 19512, 19680, 21680, 22222, 24390, 26016, 29520, 32520, 33333, 39024, 43360, 44444, 48780, 55555, 59040, 65040, 66666, 78048, 88888, 97560, 99999, 111110, 130080, 133332, 166665, 177776, 195120, 199998, 222220, 266664, 333330, 355552, 390240, 399996, 444440, 499995, 533328, 666660, 799992, 888880, 999990, 1066656, 1333320, 1599984, 1777760, 1999980, 2666640, 3199968, 3999960, 5333280, 7999920, 15999840]

約数ペア:

[(1, 15999840), (2, 7999920), (3, 5333280), (4, 3999960), (5, 3199968), (6, 2666640), (8, 1999980), (9, 1777760), (10, 1599984), (12, 1333320), (15, 1066656), (16, 999990), (18, 888880), (20, 799992), (24, 666660), (30, 533328), (32, 499995), (36, 444440), (40, 399996), (41, 390240), (45, 355552), (48, 333330), (60, 266664), (72, 222220), (80, 199998), (82, 195120), (90, 177776), (96, 166665), (120, 133332), (123, 130080), (144, 111110), (160, 99999), (164, 97560), (180, 88888), (205, 78048), (240, 66666), (246, 65040), (271, 59040), (288, 55555), (328, 48780), (360, 44444), (369, 43360), (410, 39024), (480, 33333), (492, 32520), (542, 29520), (615, 26016), (656, 24390), (720, 22222), (738, 21680), (813, 19680), (820, 19512), (984, 16260), (1084, 14760), (1230, 13008), (1312, 12195), (1355, 11808), (1440, 11111), (1476, 10840), (1626, 9840), (1640, 9756), (1845, 8672), (1968, 8130), (2168, 7380), (2439, 6560), (2460, 6504), (2710, 5904), (2952, 5420), (3252, 4920), (3280, 4878), (3690, 4336), (3936, 4065)]