28555280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27457}}^1$

素因数の和:27483

約数の個数: 40

約数和(自身を含む): 71500632

約数和(自身を除く): 42945352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27457, 54914, 109828, 137285, 219656, 274570, 356941, 439312, 549140, 713882, 1098280, 1427764, 1784705, 2196560, 2855528, 3569410, 5711056, 7138820, 14277640, 28555280]

約数ペア:

[(1, 28555280), (2, 14277640), (4, 7138820), (5, 5711056), (8, 3569410), (10, 2855528), (13, 2196560), (16, 1784705), (20, 1427764), (26, 1098280), (40, 713882), (52, 549140), (65, 439312), (80, 356941), (104, 274570), (130, 219656), (208, 137285), (260, 109828), (520, 54914), (1040, 27457)]