212722705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1\times {\mathrm{389}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 283046400

約数和(自身を除く): 70323695

約数列:

[1, 5, 13, 47, 65, 179, 235, 389, 611, 895, 1945, 2327, 3055, 5057, 8413, 11635, 18283, 25285, 42065, 69631, 91415, 109369, 237679, 348155, 546845, 905203, 1188395, 3272657, 4526015, 16363285, 42544541, 212722705]

約数ペア:

[(1, 212722705), (5, 42544541), (13, 16363285), (47, 4526015), (65, 3272657), (179, 1188395), (235, 905203), (389, 546845), (611, 348155), (895, 237679), (1945, 109369), (2327, 91415), (3055, 69631), (5057, 42065), (8413, 25285), (11635, 18283)]