64980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^2$

素因数の和:53

約数の個数: 54

約数和(自身を含む): 208026

約数和(自身を除く): 143046

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 361, 380, 570, 684, 722, 855, 1083, 1140, 1444, 1710, 1805, 2166, 3249, 3420, 3610, 4332, 5415, 6498, 7220, 10830, 12996, 16245, 21660, 32490, 64980]

約数ペア:

[(1, 64980), (2, 32490), (3, 21660), (4, 16245), (5, 12996), (6, 10830), (9, 7220), (10, 6498), (12, 5415), (15, 4332), (18, 3610), (19, 3420), (20, 3249), (30, 2166), (36, 1805), (38, 1710), (45, 1444), (57, 1140), (60, 1083), (76, 855), (90, 722), (95, 684), (114, 570), (171, 380), (180, 361), (190, 342), (228, 285)]