81332520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:387

約数の個数: 128

約数和(自身を含む): 254983680

約数和(自身を除く): 173651160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 61, 82, 120, 122, 123, 164, 183, 205, 244, 246, 271, 305, 328, 366, 410, 488, 492, 542, 610, 615, 732, 813, 820, 915, 984, 1084, 1220, 1230, 1355, 1464, 1626, 1640, 1830, 2168, 2440, 2460, 2501, 2710, 3252, 3660, 4065, 4920, 5002, 5420, 6504, 7320, 7503, 8130, 10004, 10840, 11111, 12505, 15006, 16260, 16531, 20008, 22222, 25010, 30012, 32520, 33062, 33333, 37515, 44444, 49593, 50020, 55555, 60024, 66124, 66666, 75030, 82655, 88888, 99186, 100040, 111110, 132248, 133332, 150060, 165310, 166665, 198372, 222220, 247965, 266664, 300120, 330620, 333330, 396744, 444440, 495930, 661240, 666660, 677771, 991860, 1333320, 1355542, 1983720, 2033313, 2711084, 3388855, 4066626, 5422168, 6777710, 8133252, 10166565, 13555420, 16266504, 20333130, 27110840, 40666260, 81332520]

約数ペア:

[(1, 81332520), (2, 40666260), (3, 27110840), (4, 20333130), (5, 16266504), (6, 13555420), (8, 10166565), (10, 8133252), (12, 6777710), (15, 5422168), (20, 4066626), (24, 3388855), (30, 2711084), (40, 2033313), (41, 1983720), (60, 1355542), (61, 1333320), (82, 991860), (120, 677771), (122, 666660), (123, 661240), (164, 495930), (183, 444440), (205, 396744), (244, 333330), (246, 330620), (271, 300120), (305, 266664), (328, 247965), (366, 222220), (410, 198372), (488, 166665), (492, 165310), (542, 150060), (610, 133332), (615, 132248), (732, 111110), (813, 100040), (820, 99186), (915, 88888), (984, 82655), (1084, 75030), (1220, 66666), (1230, 66124), (1355, 60024), (1464, 55555), (1626, 50020), (1640, 49593), (1830, 44444), (2168, 37515), (2440, 33333), (2460, 33062), (2501, 32520), (2710, 30012), (3252, 25010), (3660, 22222), (4065, 20008), (4920, 16531), (5002, 16260), (5420, 15006), (6504, 12505), (7320, 11111), (7503, 10840), (8130, 10004)]