20249216

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 44610720

約数和(自身を除く): 24361504

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 172, 208, 283, 344, 416, 559, 566, 688, 832, 1118, 1132, 1376, 1664, 2236, 2264, 2752, 3679, 4472, 4528, 5504, 7358, 8944, 9056, 12169, 14716, 17888, 18112, 24338, 29432, 35776, 36224, 48676, 58864, 71552, 97352, 117728, 158197, 194704, 235456, 316394, 389408, 470912, 632788, 778816, 1265576, 1557632, 2531152, 5062304, 10124608, 20249216]

約数ペア:

[(1, 20249216), (2, 10124608), (4, 5062304), (8, 2531152), (13, 1557632), (16, 1265576), (26, 778816), (32, 632788), (43, 470912), (52, 389408), (64, 316394), (86, 235456), (104, 194704), (128, 158197), (172, 117728), (208, 97352), (283, 71552), (344, 58864), (416, 48676), (559, 36224), (566, 35776), (688, 29432), (832, 24338), (1118, 18112), (1132, 17888), (1376, 14716), (1664, 12169), (2236, 9056), (2264, 8944), (2752, 7358), (3679, 5504), (4472, 4528)]