5551780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 12729024

約数和(自身を除く): 7177244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 163, 260, 262, 326, 524, 652, 655, 815, 1310, 1630, 1703, 2119, 2620, 3260, 3406, 4238, 6812, 8476, 8515, 10595, 17030, 21190, 21353, 34060, 42380, 42706, 85412, 106765, 213530, 277589, 427060, 555178, 1110356, 1387945, 2775890, 5551780]

約数ペア:

[(1, 5551780), (2, 2775890), (4, 1387945), (5, 1110356), (10, 555178), (13, 427060), (20, 277589), (26, 213530), (52, 106765), (65, 85412), (130, 42706), (131, 42380), (163, 34060), (260, 21353), (262, 21190), (326, 17030), (524, 10595), (652, 8515), (655, 8476), (815, 6812), (1310, 4238), (1630, 3406), (1703, 3260), (2119, 2620)]