88887320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 225720000

約数和(自身を除く): 136832680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 37, 38, 40, 58, 74, 76, 95, 109, 116, 145, 148, 152, 185, 190, 218, 232, 290, 296, 370, 380, 436, 545, 551, 580, 703, 740, 760, 872, 1073, 1090, 1102, 1160, 1406, 1480, 2071, 2146, 2180, 2204, 2755, 2812, 3161, 3515, 4033, 4142, 4292, 4360, 4408, 5365, 5510, 5624, 6322, 7030, 8066, 8284, 8584, 10355, 10730, 11020, 12644, 14060, 15805, 16132, 16568, 20165, 20387, 20710, 21460, 22040, 25288, 28120, 31610, 32264, 40330, 40774, 41420, 42920, 60059, 63220, 76627, 80660, 81548, 82840, 101935, 116957, 120118, 126440, 153254, 161320, 163096, 203870, 233914, 240236, 300295, 306508, 383135, 407740, 467828, 480472, 584785, 600590, 613016, 766270, 815480, 935656, 1169570, 1201180, 1532540, 2222183, 2339140, 2402360, 3065080, 4444366, 4678280, 8888732, 11110915, 17777464, 22221830, 44443660, 88887320]

約数ペア:

[(1, 88887320), (2, 44443660), (4, 22221830), (5, 17777464), (8, 11110915), (10, 8888732), (19, 4678280), (20, 4444366), (29, 3065080), (37, 2402360), (38, 2339140), (40, 2222183), (58, 1532540), (74, 1201180), (76, 1169570), (95, 935656), (109, 815480), (116, 766270), (145, 613016), (148, 600590), (152, 584785), (185, 480472), (190, 467828), (218, 407740), (232, 383135), (290, 306508), (296, 300295), (370, 240236), (380, 233914), (436, 203870), (545, 163096), (551, 161320), (580, 153254), (703, 126440), (740, 120118), (760, 116957), (872, 101935), (1073, 82840), (1090, 81548), (1102, 80660), (1160, 76627), (1406, 63220), (1480, 60059), (2071, 42920), (2146, 41420), (2180, 40774), (2204, 40330), (2755, 32264), (2812, 31610), (3161, 28120), (3515, 25288), (4033, 22040), (4142, 21460), (4292, 20710), (4360, 20387), (4408, 20165), (5365, 16568), (5510, 16132), (5624, 15805), (6322, 14060), (7030, 12644), (8066, 11020), (8284, 10730), (8584, 10355)]