81157140

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{16699}}^1$

素因数の和:16723

約数の個数: 72

約数和(自身を含む): 255309600

約数和(自身を除く): 174152460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 16699, 33398, 50097, 66796, 83495, 100194, 150291, 166990, 200388, 250485, 300582, 333980, 450873, 500970, 601164, 751455, 901746, 1001940, 1352619, 1502910, 1803492, 2254365, 2705238, 3005820, 4057857, 4508730, 5410476, 6763095, 8115714, 9017460, 13526190, 16231428, 20289285, 27052380, 40578570, 81157140]

約数ペア:

[(1, 81157140), (2, 40578570), (3, 27052380), (4, 20289285), (5, 16231428), (6, 13526190), (9, 9017460), (10, 8115714), (12, 6763095), (15, 5410476), (18, 4508730), (20, 4057857), (27, 3005820), (30, 2705238), (36, 2254365), (45, 1803492), (54, 1502910), (60, 1352619), (81, 1001940), (90, 901746), (108, 751455), (135, 601164), (162, 500970), (180, 450873), (243, 333980), (270, 300582), (324, 250485), (405, 200388), (486, 166990), (540, 150291), (810, 100194), (972, 83495), (1215, 66796), (1620, 50097), (2430, 33398), (4860, 16699)]