16915340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 41912640

約数和(自身を除く): 24997300

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 43, 52, 65, 68, 85, 86, 89, 130, 170, 172, 178, 215, 221, 260, 340, 356, 430, 442, 445, 559, 731, 860, 884, 890, 1105, 1118, 1157, 1462, 1513, 1780, 2210, 2236, 2314, 2795, 2924, 3026, 3655, 3827, 4420, 4628, 5590, 5785, 6052, 7310, 7565, 7654, 9503, 11180, 11570, 14620, 15130, 15308, 19006, 19135, 19669, 23140, 30260, 38012, 38270, 39338, 47515, 49751, 65059, 76540, 78676, 95030, 98345, 99502, 130118, 190060, 196690, 199004, 248755, 260236, 325295, 393380, 497510, 650590, 845767, 995020, 1301180, 1691534, 3383068, 4228835, 8457670, 16915340]

約数ペア:

[(1, 16915340), (2, 8457670), (4, 4228835), (5, 3383068), (10, 1691534), (13, 1301180), (17, 995020), (20, 845767), (26, 650590), (34, 497510), (43, 393380), (52, 325295), (65, 260236), (68, 248755), (85, 199004), (86, 196690), (89, 190060), (130, 130118), (170, 99502), (172, 98345), (178, 95030), (215, 78676), (221, 76540), (260, 65059), (340, 49751), (356, 47515), (430, 39338), (442, 38270), (445, 38012), (559, 30260), (731, 23140), (860, 19669), (884, 19135), (890, 19006), (1105, 15308), (1118, 15130), (1157, 14620), (1462, 11570), (1513, 11180), (1780, 9503), (2210, 7654), (2236, 7565), (2314, 7310), (2795, 6052), (2924, 5785), (3026, 5590), (3655, 4628), (3827, 4420)]