209601280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:334

約数の個数: 144

約数和(自身を含む): 581313600

約数和(自身を除く): 371712320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 149, 157, 160, 224, 256, 280, 298, 314, 320, 448, 560, 596, 628, 640, 745, 785, 896, 1043, 1099, 1120, 1192, 1256, 1280, 1490, 1570, 1792, 2086, 2198, 2240, 2384, 2512, 2980, 3140, 4172, 4396, 4480, 4768, 5024, 5215, 5495, 5960, 6280, 8344, 8792, 8960, 9536, 10048, 10430, 10990, 11920, 12560, 16688, 17584, 19072, 20096, 20860, 21980, 23393, 23840, 25120, 33376, 35168, 38144, 40192, 41720, 43960, 46786, 47680, 50240, 66752, 70336, 83440, 87920, 93572, 95360, 100480, 116965, 133504, 140672, 163751, 166880, 175840, 187144, 190720, 200960, 233930, 267008, 281344, 327502, 333760, 351680, 374288, 467860, 655004, 667520, 703360, 748576, 818755, 935720, 1310008, 1335040, 1406720, 1497152, 1637510, 1871440, 2620016, 2994304, 3275020, 3742880, 5240032, 5988608, 6550040, 7485760, 10480064, 13100080, 14971520, 20960128, 26200160, 29943040, 41920256, 52400320, 104800640, 209601280]

約数ペア:

[(1, 209601280), (2, 104800640), (4, 52400320), (5, 41920256), (7, 29943040), (8, 26200160), (10, 20960128), (14, 14971520), (16, 13100080), (20, 10480064), (28, 7485760), (32, 6550040), (35, 5988608), (40, 5240032), (56, 3742880), (64, 3275020), (70, 2994304), (80, 2620016), (112, 1871440), (128, 1637510), (140, 1497152), (149, 1406720), (157, 1335040), (160, 1310008), (224, 935720), (256, 818755), (280, 748576), (298, 703360), (314, 667520), (320, 655004), (448, 467860), (560, 374288), (596, 351680), (628, 333760), (640, 327502), (745, 281344), (785, 267008), (896, 233930), (1043, 200960), (1099, 190720), (1120, 187144), (1192, 175840), (1256, 166880), (1280, 163751), (1490, 140672), (1570, 133504), (1792, 116965), (2086, 100480), (2198, 95360), (2240, 93572), (2384, 87920), (2512, 83440), (2980, 70336), (3140, 66752), (4172, 50240), (4396, 47680), (4480, 46786), (4768, 43960), (5024, 41720), (5215, 40192), (5495, 38144), (5960, 35168), (6280, 33376), (8344, 25120), (8792, 23840), (8960, 23393), (9536, 21980), (10048, 20860), (10430, 20096), (10990, 19072), (11920, 17584), (12560, 16688)]