278312684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6551}}^1$

素因数の和:6630

約数の個数: 48

約数和(自身を含む): 565044480

約数和(自身を除く): 286731796

約数列:

[1, 2, 4, 13, 19, 26, 38, 43, 52, 76, 86, 172, 247, 494, 559, 817, 988, 1118, 1634, 2236, 3268, 6551, 10621, 13102, 21242, 26204, 42484, 85163, 124469, 170326, 248938, 281693, 340652, 497876, 563386, 1126772, 1618097, 3236194, 3662009, 5352167, 6472388, 7324018, 10704334, 14648036, 21408668, 69578171, 139156342, 278312684]

約数ペア:

[(1, 278312684), (2, 139156342), (4, 69578171), (13, 21408668), (19, 14648036), (26, 10704334), (38, 7324018), (43, 6472388), (52, 5352167), (76, 3662009), (86, 3236194), (172, 1618097), (247, 1126772), (494, 563386), (559, 497876), (817, 340652), (988, 281693), (1118, 248938), (1634, 170326), (2236, 124469), (3268, 85163), (6551, 42484), (10621, 26204), (13102, 21242)]