19972527155

素因数分解:

$5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{8053}}^1$

素因数の和:8316

約数の個数: 48

約数和(自身を含む): 28558324224

約数和(自身を除く): 8585797069

約数列:

[1, 5, 7, 35, 49, 53, 191, 245, 265, 371, 955, 1337, 1855, 2597, 6685, 8053, 9359, 10123, 12985, 40265, 46795, 50615, 56371, 70861, 281855, 354305, 394597, 426809, 496027, 1538123, 1972985, 2134045, 2480135, 2987663, 7690615, 10766861, 14938315, 20913641, 53834305, 75368027, 81520519, 104568205, 376840135, 407602595, 570643633, 2853218165, 3994505431, 19972527155]

約数ペア:

[(1, 19972527155), (5, 3994505431), (7, 2853218165), (35, 570643633), (49, 407602595), (53, 376840135), (191, 104568205), (245, 81520519), (265, 75368027), (371, 53834305), (955, 20913641), (1337, 14938315), (1855, 10766861), (2597, 7690615), (6685, 2987663), (8053, 2480135), (9359, 2134045), (10123, 1972985), (12985, 1538123), (40265, 496027), (46795, 426809), (50615, 394597), (56371, 354305), (70861, 281855)]