7999920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:331

約数の個数: 120

約数和(自身を含む): 27623232

約数和(自身を除く): 19623312

約数列:

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

約数ペア:

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