21627040

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 54432000

約数和(自身を除く): 32804960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 59, 79, 80, 116, 118, 145, 158, 160, 232, 236, 290, 295, 316, 395, 464, 472, 580, 590, 632, 790, 928, 944, 1160, 1180, 1264, 1580, 1711, 1888, 2291, 2320, 2360, 2528, 3160, 3422, 4582, 4640, 4661, 4720, 6320, 6844, 8555, 9164, 9322, 9440, 11455, 12640, 13688, 17110, 18328, 18644, 22910, 23305, 27376, 34220, 36656, 37288, 45820, 46610, 54752, 68440, 73312, 74576, 91640, 93220, 135169, 136880, 149152, 183280, 186440, 270338, 273760, 366560, 372880, 540676, 675845, 745760, 1081352, 1351690, 2162704, 2703380, 4325408, 5406760, 10813520, 21627040]

約数ペア:

[(1, 21627040), (2, 10813520), (4, 5406760), (5, 4325408), (8, 2703380), (10, 2162704), (16, 1351690), (20, 1081352), (29, 745760), (32, 675845), (40, 540676), (58, 372880), (59, 366560), (79, 273760), (80, 270338), (116, 186440), (118, 183280), (145, 149152), (158, 136880), (160, 135169), (232, 93220), (236, 91640), (290, 74576), (295, 73312), (316, 68440), (395, 54752), (464, 46610), (472, 45820), (580, 37288), (590, 36656), (632, 34220), (790, 27376), (928, 23305), (944, 22910), (1160, 18644), (1180, 18328), (1264, 17110), (1580, 13688), (1711, 12640), (1888, 11455), (2291, 9440), (2320, 9322), (2360, 9164), (2528, 8555), (3160, 6844), (3422, 6320), (4582, 4720), (4640, 4661)]