18836480

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1$

素因数の和:321

約数の個数: 88

約数和(自身を含む): 48833232

約数和(自身を除く): 29996752

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, 283, 320, 416, 512, 520, 566, 640, 832, 1024, 1040, 1132, 1280, 1415, 1664, 2080, 2264, 2560, 2830, 3328, 3679, 4160, 4528, 5120, 5660, 6656, 7358, 8320, 9056, 11320, 13312, 14716, 16640, 18112, 18395, 22640, 29432, 33280, 36224, 36790, 45280, 58864, 66560, 72448, 73580, 90560, 117728, 144896, 147160, 181120, 235456, 289792, 294320, 362240, 470912, 588640, 724480, 941824, 1177280, 1448960, 1883648, 2354560, 3767296, 4709120, 9418240, 18836480]

約数ペア:

[(1, 18836480), (2, 9418240), (4, 4709120), (5, 3767296), (8, 2354560), (10, 1883648), (13, 1448960), (16, 1177280), (20, 941824), (26, 724480), (32, 588640), (40, 470912), (52, 362240), (64, 294320), (65, 289792), (80, 235456), (104, 181120), (128, 147160), (130, 144896), (160, 117728), (208, 90560), (256, 73580), (260, 72448), (283, 66560), (320, 58864), (416, 45280), (512, 36790), (520, 36224), (566, 33280), (640, 29432), (832, 22640), (1024, 18395), (1040, 18112), (1132, 16640), (1280, 14716), (1415, 13312), (1664, 11320), (2080, 9056), (2264, 8320), (2560, 7358), (2830, 6656), (3328, 5660), (3679, 5120), (4160, 4528)]