64433920

素因数分解:

$2^8\times 5^1\times {\mathrm{71}}^1\times {\mathrm{709}}^1$

素因数の和:801

約数の個数: 72

約数和(自身を含む): 156733920

約数和(自身を除く): 92300000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 568, 640, 709, 710, 1136, 1280, 1418, 1420, 2272, 2836, 2840, 3545, 4544, 5672, 5680, 7090, 9088, 11344, 11360, 14180, 18176, 22688, 22720, 28360, 45376, 45440, 50339, 56720, 90752, 90880, 100678, 113440, 181504, 201356, 226880, 251695, 402712, 453760, 503390, 805424, 907520, 1006780, 1610848, 2013560, 3221696, 4027120, 6443392, 8054240, 12886784, 16108480, 32216960, 64433920]

約数ペア:

[(1, 64433920), (2, 32216960), (4, 16108480), (5, 12886784), (8, 8054240), (10, 6443392), (16, 4027120), (20, 3221696), (32, 2013560), (40, 1610848), (64, 1006780), (71, 907520), (80, 805424), (128, 503390), (142, 453760), (160, 402712), (256, 251695), (284, 226880), (320, 201356), (355, 181504), (568, 113440), (640, 100678), (709, 90880), (710, 90752), (1136, 56720), (1280, 50339), (1418, 45440), (1420, 45376), (2272, 28360), (2836, 22720), (2840, 22688), (3545, 18176), (4544, 14180), (5672, 11360), (5680, 11344), (7090, 9088)]