81010620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1297}}^1$

素因数の和:1659

約数の個数: 72

約数和(自身を含む): 246630384

約数和(自身を除く): 165619764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 347, 694, 1041, 1297, 1388, 1735, 2082, 2594, 3123, 3470, 3891, 4164, 5188, 5205, 6246, 6485, 6940, 7782, 10410, 11673, 12492, 12970, 15564, 15615, 19455, 20820, 23346, 25940, 31230, 38910, 46692, 58365, 62460, 77820, 116730, 233460, 450059, 900118, 1350177, 1800236, 2250295, 2700354, 4050531, 4500590, 5400708, 6750885, 8101062, 9001180, 13501770, 16202124, 20252655, 27003540, 40505310, 81010620]

約数ペア:

[(1, 81010620), (2, 40505310), (3, 27003540), (4, 20252655), (5, 16202124), (6, 13501770), (9, 9001180), (10, 8101062), (12, 6750885), (15, 5400708), (18, 4500590), (20, 4050531), (30, 2700354), (36, 2250295), (45, 1800236), (60, 1350177), (90, 900118), (180, 450059), (347, 233460), (694, 116730), (1041, 77820), (1297, 62460), (1388, 58365), (1735, 46692), (2082, 38910), (2594, 31230), (3123, 25940), (3470, 23346), (3891, 20820), (4164, 19455), (5188, 15615), (5205, 15564), (6246, 12970), (6485, 12492), (6940, 11673), (7782, 10410)]