164865280

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6779}}^1$

素因数の和:6819

約数の個数: 72

約数和(自身を含む): 415749600

約数和(自身を除く): 250884320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 6080, 6779, 12160, 13558, 24320, 27116, 33895, 54232, 67790, 108464, 128801, 135580, 216928, 257602, 271160, 433856, 515204, 542320, 644005, 867712, 1030408, 1084640, 1288010, 1735424, 2060816, 2169280, 2576020, 4121632, 4338560, 5152040, 8243264, 8677120, 10304080, 16486528, 20608160, 32973056, 41216320, 82432640, 164865280]

約数ペア:

[(1, 164865280), (2, 82432640), (4, 41216320), (5, 32973056), (8, 20608160), (10, 16486528), (16, 10304080), (19, 8677120), (20, 8243264), (32, 5152040), (38, 4338560), (40, 4121632), (64, 2576020), (76, 2169280), (80, 2060816), (95, 1735424), (128, 1288010), (152, 1084640), (160, 1030408), (190, 867712), (256, 644005), (304, 542320), (320, 515204), (380, 433856), (608, 271160), (640, 257602), (760, 216928), (1216, 135580), (1280, 128801), (1520, 108464), (2432, 67790), (3040, 54232), (4864, 33895), (6080, 27116), (6779, 24320), (12160, 13558)]