18690560

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{149}}^1$

素因数の和:186

約数の個数: 120

約数和(自身を含む): 52479900

約数和(自身を除く): 33789340

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 149, 160, 196, 224, 245, 256, 280, 298, 320, 392, 448, 490, 512, 560, 596, 640, 745, 784, 896, 980, 1043, 1120, 1192, 1280, 1490, 1568, 1792, 1960, 2086, 2240, 2384, 2560, 2980, 3136, 3584, 3920, 4172, 4480, 4768, 5215, 5960, 6272, 7301, 7840, 8344, 8960, 9536, 10430, 11920, 12544, 14602, 15680, 16688, 17920, 19072, 20860, 23840, 25088, 29204, 31360, 33376, 36505, 38144, 41720, 47680, 58408, 62720, 66752, 73010, 76288, 83440, 95360, 116816, 125440, 133504, 146020, 166880, 190720, 233632, 267008, 292040, 333760, 381440, 467264, 534016, 584080, 667520, 934528, 1168160, 1335040, 1869056, 2336320, 2670080, 3738112, 4672640, 9345280, 18690560]

約数ペア:

[(1, 18690560), (2, 9345280), (4, 4672640), (5, 3738112), (7, 2670080), (8, 2336320), (10, 1869056), (14, 1335040), (16, 1168160), (20, 934528), (28, 667520), (32, 584080), (35, 534016), (40, 467264), (49, 381440), (56, 333760), (64, 292040), (70, 267008), (80, 233632), (98, 190720), (112, 166880), (128, 146020), (140, 133504), (149, 125440), (160, 116816), (196, 95360), (224, 83440), (245, 76288), (256, 73010), (280, 66752), (298, 62720), (320, 58408), (392, 47680), (448, 41720), (490, 38144), (512, 36505), (560, 33376), (596, 31360), (640, 29204), (745, 25088), (784, 23840), (896, 20860), (980, 19072), (1043, 17920), (1120, 16688), (1192, 15680), (1280, 14602), (1490, 12544), (1568, 11920), (1792, 10430), (1960, 9536), (2086, 8960), (2240, 8344), (2384, 7840), (2560, 7301), (2980, 6272), (3136, 5960), (3584, 5215), (3920, 4768), (4172, 4480)]