18353920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1103}}^1$

素因数の和:1137

約数の個数: 72

約数和(自身を含む): 47388096

約数和(自身を除く): 29034176

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, 1103, 1280, 1664, 2080, 2206, 3328, 4160, 4412, 5515, 8320, 8824, 11030, 14339, 16640, 17648, 22060, 28678, 35296, 44120, 57356, 70592, 71695, 88240, 114712, 141184, 143390, 176480, 229424, 282368, 286780, 352960, 458848, 573560, 705920, 917696, 1147120, 1411840, 1835392, 2294240, 3670784, 4588480, 9176960, 18353920]

約数ペア:

[(1, 18353920), (2, 9176960), (4, 4588480), (5, 3670784), (8, 2294240), (10, 1835392), (13, 1411840), (16, 1147120), (20, 917696), (26, 705920), (32, 573560), (40, 458848), (52, 352960), (64, 286780), (65, 282368), (80, 229424), (104, 176480), (128, 143390), (130, 141184), (160, 114712), (208, 88240), (256, 71695), (260, 70592), (320, 57356), (416, 44120), (520, 35296), (640, 28678), (832, 22060), (1040, 17648), (1103, 16640), (1280, 14339), (1664, 11030), (2080, 8824), (2206, 8320), (3328, 5515), (4160, 4412)]