81397560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{2503}}^1$

素因数の和:2788

約数の個数: 64

約数和(自身を含む): 245191680

約数和(自身を除く): 163794120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 271, 542, 813, 1084, 1355, 1626, 2168, 2503, 2710, 3252, 4065, 5006, 5420, 6504, 7509, 8130, 10012, 10840, 12515, 15018, 16260, 20024, 25030, 30036, 32520, 37545, 50060, 60072, 75090, 100120, 150180, 300360, 678313, 1356626, 2034939, 2713252, 3391565, 4069878, 5426504, 6783130, 8139756, 10174695, 13566260, 16279512, 20349390, 27132520, 40698780, 81397560]

約数ペア:

[(1, 81397560), (2, 40698780), (3, 27132520), (4, 20349390), (5, 16279512), (6, 13566260), (8, 10174695), (10, 8139756), (12, 6783130), (15, 5426504), (20, 4069878), (24, 3391565), (30, 2713252), (40, 2034939), (60, 1356626), (120, 678313), (271, 300360), (542, 150180), (813, 100120), (1084, 75090), (1355, 60072), (1626, 50060), (2168, 37545), (2503, 32520), (2710, 30036), (3252, 25030), (4065, 20024), (5006, 16260), (5420, 15018), (6504, 12515), (7509, 10840), (8130, 10012)]