20293072880

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{907}}^1\times {\mathrm{1877}}^1$

素因数の和:2946

約数の個数: 80

約数和(自身を含む): 47575749600

約数和(自身を除く): 27282676720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 907, 1192, 1490, 1814, 1877, 2384, 2980, 3628, 3754, 4535, 5960, 7256, 7508, 9070, 9385, 11920, 14512, 15016, 18140, 18770, 30032, 36280, 37540, 72560, 75080, 135143, 150160, 270286, 279673, 540572, 559346, 675715, 1081144, 1118692, 1351430, 1398365, 1702439, 2162288, 2237384, 2702860, 2796730, 3404878, 4474768, 5405720, 5593460, 6809756, 8512195, 10811440, 11186920, 13619512, 17024390, 22373840, 27239024, 34048780, 68097560, 136195120, 253663411, 507326822, 1014653644, 1268317055, 2029307288, 2536634110, 4058614576, 5073268220, 10146536440, 20293072880]

約数ペア:

[(1, 20293072880), (2, 10146536440), (4, 5073268220), (5, 4058614576), (8, 2536634110), (10, 2029307288), (16, 1268317055), (20, 1014653644), (40, 507326822), (80, 253663411), (149, 136195120), (298, 68097560), (596, 34048780), (745, 27239024), (907, 22373840), (1192, 17024390), (1490, 13619512), (1814, 11186920), (1877, 10811440), (2384, 8512195), (2980, 6809756), (3628, 5593460), (3754, 5405720), (4535, 4474768), (5960, 3404878), (7256, 2796730), (7508, 2702860), (9070, 2237384), (9385, 2162288), (11920, 1702439), (14512, 1398365), (15016, 1351430), (18140, 1118692), (18770, 1081144), (30032, 675715), (36280, 559346), (37540, 540572), (72560, 279673), (75080, 270286), (135143, 150160)]