638957790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{10973}}^1$

素因数の和:11633

約数の個数: 48

約数和(自身を含む): 1664009568

約数和(自身を除く): 1025051778

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 647, 1294, 1941, 3235, 3882, 5823, 6470, 9705, 10973, 11646, 19410, 21946, 29115, 32919, 54865, 58230, 65838, 98757, 109730, 164595, 197514, 329190, 493785, 987570, 7099531, 14199062, 21298593, 35497655, 42597186, 63895779, 70995310, 106492965, 127791558, 212985930, 319478895, 638957790]

約数ペア:

[(1, 638957790), (2, 319478895), (3, 212985930), (5, 127791558), (6, 106492965), (9, 70995310), (10, 63895779), (15, 42597186), (18, 35497655), (30, 21298593), (45, 14199062), (90, 7099531), (647, 987570), (1294, 493785), (1941, 329190), (3235, 197514), (3882, 164595), (5823, 109730), (6470, 98757), (9705, 65838), (10973, 58230), (11646, 54865), (19410, 32919), (21946, 29115)]