260780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:98

約数の個数: 48

約数和(自身を含む): 635040

約数和(自身を除く): 374260

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 59, 65, 68, 85, 118, 130, 170, 221, 236, 260, 295, 340, 442, 590, 767, 884, 1003, 1105, 1180, 1534, 2006, 2210, 3068, 3835, 4012, 4420, 5015, 7670, 10030, 13039, 15340, 20060, 26078, 52156, 65195, 130390, 260780]

約数ペア:

[(1, 260780), (2, 130390), (4, 65195), (5, 52156), (10, 26078), (13, 20060), (17, 15340), (20, 13039), (26, 10030), (34, 7670), (52, 5015), (59, 4420), (65, 4012), (68, 3835), (85, 3068), (118, 2210), (130, 2006), (170, 1534), (221, 1180), (236, 1105), (260, 1003), (295, 884), (340, 767), (442, 590)]