399633440

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:490

約数の個数: 96

約数和(自身を含む): 968454144

約数和(自身を除く): 568820704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 127, 142, 160, 254, 277, 284, 355, 508, 554, 568, 635, 710, 1016, 1108, 1136, 1270, 1385, 1420, 2032, 2216, 2272, 2540, 2770, 2840, 4064, 4432, 5080, 5540, 5680, 8864, 9017, 10160, 11080, 11360, 18034, 19667, 20320, 22160, 35179, 36068, 39334, 44320, 45085, 70358, 72136, 78668, 90170, 98335, 140716, 144272, 157336, 175895, 180340, 196670, 281432, 288544, 314672, 351790, 360680, 393340, 562864, 629344, 703580, 721360, 786680, 1125728, 1407160, 1442720, 1573360, 2497709, 2814320, 3146720, 4995418, 5628640, 9990836, 12488545, 19981672, 24977090, 39963344, 49954180, 79926688, 99908360, 199816720, 399633440]

約数ペア:

[(1, 399633440), (2, 199816720), (4, 99908360), (5, 79926688), (8, 49954180), (10, 39963344), (16, 24977090), (20, 19981672), (32, 12488545), (40, 9990836), (71, 5628640), (80, 4995418), (127, 3146720), (142, 2814320), (160, 2497709), (254, 1573360), (277, 1442720), (284, 1407160), (355, 1125728), (508, 786680), (554, 721360), (568, 703580), (635, 629344), (710, 562864), (1016, 393340), (1108, 360680), (1136, 351790), (1270, 314672), (1385, 288544), (1420, 281432), (2032, 196670), (2216, 180340), (2272, 175895), (2540, 157336), (2770, 144272), (2840, 140716), (4064, 98335), (4432, 90170), (5080, 78668), (5540, 72136), (5680, 70358), (8864, 45085), (9017, 44320), (10160, 39334), (11080, 36068), (11360, 35179), (18034, 22160), (19667, 20320)]