804913880

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{1913}}^1$

素因数の和:2148

約数の個数: 64

約数和(自身を含む): 1850761440

約数和(自身を除く): 1045847560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 157, 268, 314, 335, 536, 628, 670, 785, 1256, 1340, 1570, 1913, 2680, 3140, 3826, 6280, 7652, 9565, 10519, 15304, 19130, 21038, 38260, 42076, 52595, 76520, 84152, 105190, 128171, 210380, 256342, 300341, 420760, 512684, 600682, 640855, 1025368, 1201364, 1281710, 1501705, 2402728, 2563420, 3003410, 5126840, 6006820, 12013640, 20122847, 40245694, 80491388, 100614235, 160982776, 201228470, 402456940, 804913880]

約数ペア:

[(1, 804913880), (2, 402456940), (4, 201228470), (5, 160982776), (8, 100614235), (10, 80491388), (20, 40245694), (40, 20122847), (67, 12013640), (134, 6006820), (157, 5126840), (268, 3003410), (314, 2563420), (335, 2402728), (536, 1501705), (628, 1281710), (670, 1201364), (785, 1025368), (1256, 640855), (1340, 600682), (1570, 512684), (1913, 420760), (2680, 300341), (3140, 256342), (3826, 210380), (6280, 128171), (7652, 105190), (9565, 84152), (10519, 76520), (15304, 52595), (19130, 42076), (21038, 38260)]