19916280

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{683}}^1$

素因数の和:712

約数の個数: 112

約数和(自身を含む): 67285080

約数和(自身を除く): 47368800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 683, 729, 810, 972, 1080, 1215, 1366, 1458, 1620, 1944, 2049, 2430, 2732, 2916, 3240, 3415, 3645, 4098, 4860, 5464, 5832, 6147, 6830, 7290, 8196, 9720, 10245, 12294, 13660, 14580, 16392, 18441, 20490, 24588, 27320, 29160, 30735, 36882, 40980, 49176, 55323, 61470, 73764, 81960, 92205, 110646, 122940, 147528, 165969, 184410, 221292, 245880, 276615, 331938, 368820, 442584, 497907, 553230, 663876, 737640, 829845, 995814, 1106460, 1327752, 1659690, 1991628, 2212920, 2489535, 3319380, 3983256, 4979070, 6638760, 9958140, 19916280]

約数ペア:

[(1, 19916280), (2, 9958140), (3, 6638760), (4, 4979070), (5, 3983256), (6, 3319380), (8, 2489535), (9, 2212920), (10, 1991628), (12, 1659690), (15, 1327752), (18, 1106460), (20, 995814), (24, 829845), (27, 737640), (30, 663876), (36, 553230), (40, 497907), (45, 442584), (54, 368820), (60, 331938), (72, 276615), (81, 245880), (90, 221292), (108, 184410), (120, 165969), (135, 147528), (162, 122940), (180, 110646), (216, 92205), (243, 81960), (270, 73764), (324, 61470), (360, 55323), (405, 49176), (486, 40980), (540, 36882), (648, 30735), (683, 29160), (729, 27320), (810, 24588), (972, 20490), (1080, 18441), (1215, 16392), (1366, 14580), (1458, 13660), (1620, 12294), (1944, 10245), (2049, 9720), (2430, 8196), (2732, 7290), (2916, 6830), (3240, 6147), (3415, 5832), (3645, 5464), (4098, 4860)]