90371840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5431}}^1$

素因数の和:5465

約数の個数: 72

約数和(自身を含む): 233163168

約数和(自身を除く): 142791328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 5431, 8320, 10862, 16640, 21724, 27155, 43448, 54310, 70603, 86896, 108620, 141206, 173792, 217240, 282412, 347584, 353015, 434480, 564824, 695168, 706030, 868960, 1129648, 1390336, 1412060, 1737920, 2259296, 2824120, 3475840, 4518592, 5648240, 6951680, 9037184, 11296480, 18074368, 22592960, 45185920, 90371840]

約数ペア:

[(1, 90371840), (2, 45185920), (4, 22592960), (5, 18074368), (8, 11296480), (10, 9037184), (13, 6951680), (16, 5648240), (20, 4518592), (26, 3475840), (32, 2824120), (40, 2259296), (52, 1737920), (64, 1412060), (65, 1390336), (80, 1129648), (104, 868960), (128, 706030), (130, 695168), (160, 564824), (208, 434480), (256, 353015), (260, 347584), (320, 282412), (416, 217240), (520, 173792), (640, 141206), (832, 108620), (1040, 86896), (1280, 70603), (1664, 54310), (2080, 43448), (3328, 27155), (4160, 21724), (5431, 16640), (8320, 10862)]