19515960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2357}}^1$

素因数の和:2397

約数の個数: 96

約数和(自身を含む): 66212640

約数和(自身を除く): 46696680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2357, 2760, 4140, 4714, 7071, 8280, 9428, 11785, 14142, 18856, 21213, 23570, 28284, 35355, 42426, 47140, 54211, 56568, 70710, 84852, 94280, 106065, 108422, 141420, 162633, 169704, 212130, 216844, 271055, 282840, 325266, 424260, 433688, 487899, 542110, 650532, 813165, 848520, 975798, 1084220, 1301064, 1626330, 1951596, 2168440, 2439495, 3252660, 3903192, 4878990, 6505320, 9757980, 19515960]

約数ペア:

[(1, 19515960), (2, 9757980), (3, 6505320), (4, 4878990), (5, 3903192), (6, 3252660), (8, 2439495), (9, 2168440), (10, 1951596), (12, 1626330), (15, 1301064), (18, 1084220), (20, 975798), (23, 848520), (24, 813165), (30, 650532), (36, 542110), (40, 487899), (45, 433688), (46, 424260), (60, 325266), (69, 282840), (72, 271055), (90, 216844), (92, 212130), (115, 169704), (120, 162633), (138, 141420), (180, 108422), (184, 106065), (207, 94280), (230, 84852), (276, 70710), (345, 56568), (360, 54211), (414, 47140), (460, 42426), (552, 35355), (690, 28284), (828, 23570), (920, 21213), (1035, 18856), (1380, 14142), (1656, 11785), (2070, 9428), (2357, 8280), (2760, 7071), (4140, 4714)]