15920140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{653}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 35598528

約数和(自身を除く): 19678388

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 212, 230, 265, 460, 530, 653, 1060, 1219, 1306, 2438, 2612, 3265, 4876, 6095, 6530, 12190, 13060, 15019, 24380, 30038, 34609, 60076, 69218, 75095, 138436, 150190, 173045, 300380, 346090, 692180, 796007, 1592014, 3184028, 3980035, 7960070, 15920140]

約数ペア:

[(1, 15920140), (2, 7960070), (4, 3980035), (5, 3184028), (10, 1592014), (20, 796007), (23, 692180), (46, 346090), (53, 300380), (92, 173045), (106, 150190), (115, 138436), (212, 75095), (230, 69218), (265, 60076), (460, 34609), (530, 30038), (653, 24380), (1060, 15019), (1219, 13060), (1306, 12190), (2438, 6530), (2612, 6095), (3265, 4876)]