8611840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{29}}^2$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 21400470

約数和(自身を除く): 12788630

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 512, 580, 640, 841, 928, 1024, 1160, 1280, 1682, 1856, 2048, 2320, 2560, 3364, 3712, 4205, 4640, 5120, 6728, 7424, 8410, 9280, 10240, 13456, 14848, 16820, 18560, 26912, 29696, 33640, 37120, 53824, 59392, 67280, 74240, 107648, 134560, 148480, 215296, 269120, 296960, 430592, 538240, 861184, 1076480, 1722368, 2152960, 4305920, 8611840]

約数ペア:

[(1, 8611840), (2, 4305920), (4, 2152960), (5, 1722368), (8, 1076480), (10, 861184), (16, 538240), (20, 430592), (29, 296960), (32, 269120), (40, 215296), (58, 148480), (64, 134560), (80, 107648), (116, 74240), (128, 67280), (145, 59392), (160, 53824), (232, 37120), (256, 33640), (290, 29696), (320, 26912), (464, 18560), (512, 16820), (580, 14848), (640, 13456), (841, 10240), (928, 9280), (1024, 8410), (1160, 7424), (1280, 6728), (1682, 5120), (1856, 4640), (2048, 4205), (2320, 3712), (2560, 3364)]