19448260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{571}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 44396352

約数和(自身を除く): 24948092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 571, 655, 1142, 1310, 1703, 2284, 2620, 2855, 3406, 5710, 6812, 7423, 8515, 11420, 14846, 17030, 29692, 34060, 37115, 74230, 74801, 148460, 149602, 299204, 374005, 748010, 972413, 1496020, 1944826, 3889652, 4862065, 9724130, 19448260]

約数ペア:

[(1, 19448260), (2, 9724130), (4, 4862065), (5, 3889652), (10, 1944826), (13, 1496020), (20, 972413), (26, 748010), (52, 374005), (65, 299204), (130, 149602), (131, 148460), (260, 74801), (262, 74230), (524, 37115), (571, 34060), (655, 29692), (1142, 17030), (1310, 14846), (1703, 11420), (2284, 8515), (2620, 7423), (2855, 6812), (3406, 5710)]