21610960

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 60431400

約数和(自身を除く): 38820440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 49, 56, 70, 74, 80, 98, 112, 140, 148, 149, 185, 196, 245, 259, 280, 296, 298, 370, 392, 490, 518, 560, 592, 596, 740, 745, 784, 980, 1036, 1043, 1192, 1295, 1480, 1490, 1813, 1960, 2072, 2086, 2384, 2590, 2960, 2980, 3626, 3920, 4144, 4172, 5180, 5215, 5513, 5960, 7252, 7301, 8344, 9065, 10360, 10430, 11026, 11920, 14504, 14602, 16688, 18130, 20720, 20860, 22052, 27565, 29008, 29204, 36260, 36505, 38591, 41720, 44104, 55130, 58408, 72520, 73010, 77182, 83440, 88208, 110260, 116816, 145040, 146020, 154364, 192955, 220520, 270137, 292040, 308728, 385910, 441040, 540274, 584080, 617456, 771820, 1080548, 1350685, 1543640, 2161096, 2701370, 3087280, 4322192, 5402740, 10805480, 21610960]

約数ペア:

[(1, 21610960), (2, 10805480), (4, 5402740), (5, 4322192), (7, 3087280), (8, 2701370), (10, 2161096), (14, 1543640), (16, 1350685), (20, 1080548), (28, 771820), (35, 617456), (37, 584080), (40, 540274), (49, 441040), (56, 385910), (70, 308728), (74, 292040), (80, 270137), (98, 220520), (112, 192955), (140, 154364), (148, 146020), (149, 145040), (185, 116816), (196, 110260), (245, 88208), (259, 83440), (280, 77182), (296, 73010), (298, 72520), (370, 58408), (392, 55130), (490, 44104), (518, 41720), (560, 38591), (592, 36505), (596, 36260), (740, 29204), (745, 29008), (784, 27565), (980, 22052), (1036, 20860), (1043, 20720), (1192, 18130), (1295, 16688), (1480, 14602), (1490, 14504), (1813, 11920), (1960, 11026), (2072, 10430), (2086, 10360), (2384, 9065), (2590, 8344), (2960, 7301), (2980, 7252), (3626, 5960), (3920, 5513), (4144, 5215), (4172, 5180)]