81396450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{277}}^1\times {\mathrm{653}}^1$

素因数の和:948

約数の個数: 72

約数和(自身を含む): 219810708

約数和(自身を除く): 138414258

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 225, 277, 450, 554, 653, 831, 1306, 1385, 1662, 1959, 2493, 2770, 3265, 3918, 4155, 4986, 5877, 6530, 6925, 8310, 9795, 11754, 12465, 13850, 16325, 19590, 20775, 24930, 29385, 32650, 41550, 48975, 58770, 62325, 97950, 124650, 146925, 180881, 293850, 361762, 542643, 904405, 1085286, 1627929, 1808810, 2713215, 3255858, 4522025, 5426430, 8139645, 9044050, 13566075, 16279290, 27132150, 40698225, 81396450]

約数ペア:

[(1, 81396450), (2, 40698225), (3, 27132150), (5, 16279290), (6, 13566075), (9, 9044050), (10, 8139645), (15, 5426430), (18, 4522025), (25, 3255858), (30, 2713215), (45, 1808810), (50, 1627929), (75, 1085286), (90, 904405), (150, 542643), (225, 361762), (277, 293850), (450, 180881), (554, 146925), (653, 124650), (831, 97950), (1306, 62325), (1385, 58770), (1662, 48975), (1959, 41550), (2493, 32650), (2770, 29385), (3265, 24930), (3918, 20775), (4155, 19590), (4986, 16325), (5877, 13850), (6530, 12465), (6925, 11754), (8310, 9795)]