278980260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{357667}}^1$

素因数の和:357692

約数の個数: 48

約数和(自身を含む): 841235136

約数和(自身を除く): 562254876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 357667, 715334, 1073001, 1430668, 1788335, 2146002, 3576670, 4292004, 4649671, 5365005, 7153340, 9299342, 10730010, 13949013, 18598684, 21460020, 23248355, 27898026, 46496710, 55796052, 69745065, 92993420, 139490130, 278980260]

約数ペア:

[(1, 278980260), (2, 139490130), (3, 92993420), (4, 69745065), (5, 55796052), (6, 46496710), (10, 27898026), (12, 23248355), (13, 21460020), (15, 18598684), (20, 13949013), (26, 10730010), (30, 9299342), (39, 7153340), (52, 5365005), (60, 4649671), (65, 4292004), (78, 3576670), (130, 2146002), (156, 1788335), (195, 1430668), (260, 1073001), (390, 715334), (780, 357667)]