81615960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9857}}^1$

素因数の和:9897

約数の個数: 96

約数和(自身を含む): 276812640

約数和(自身を除く): 195196680

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, 2760, 4140, 8280, 9857, 19714, 29571, 39428, 49285, 59142, 78856, 88713, 98570, 118284, 147855, 177426, 197140, 226711, 236568, 295710, 354852, 394280, 443565, 453422, 591420, 680133, 709704, 887130, 906844, 1133555, 1182840, 1360266, 1774260, 1813688, 2040399, 2267110, 2720532, 3400665, 3548520, 4080798, 4534220, 5441064, 6801330, 8161596, 9068440, 10201995, 13602660, 16323192, 20403990, 27205320, 40807980, 81615960]

約数ペア:

[(1, 81615960), (2, 40807980), (3, 27205320), (4, 20403990), (5, 16323192), (6, 13602660), (8, 10201995), (9, 9068440), (10, 8161596), (12, 6801330), (15, 5441064), (18, 4534220), (20, 4080798), (23, 3548520), (24, 3400665), (30, 2720532), (36, 2267110), (40, 2040399), (45, 1813688), (46, 1774260), (60, 1360266), (69, 1182840), (72, 1133555), (90, 906844), (92, 887130), (115, 709704), (120, 680133), (138, 591420), (180, 453422), (184, 443565), (207, 394280), (230, 354852), (276, 295710), (345, 236568), (360, 226711), (414, 197140), (460, 177426), (552, 147855), (690, 118284), (828, 98570), (920, 88713), (1035, 78856), (1380, 59142), (1656, 49285), (2070, 39428), (2760, 29571), (4140, 19714), (8280, 9857)]