21320417880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{377219}}^1$

素因数の和:377393

約数の個数: 96

約数和(自身を含む): 69732889200

約数和(自身を除く): 48412471320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 157, 180, 314, 360, 471, 628, 785, 942, 1256, 1413, 1570, 1884, 2355, 2826, 3140, 3768, 4710, 5652, 6280, 7065, 9420, 11304, 14130, 18840, 28260, 56520, 377219, 754438, 1131657, 1508876, 1886095, 2263314, 3017752, 3394971, 3772190, 4526628, 5658285, 6789942, 7544380, 9053256, 11316570, 13579884, 15088760, 16974855, 22633140, 27159768, 33949710, 45266280, 59223383, 67899420, 118446766, 135798840, 177670149, 236893532, 296116915, 355340298, 473787064, 533010447, 592233830, 710680596, 888350745, 1066020894, 1184467660, 1421361192, 1776701490, 2132041788, 2368935320, 2665052235, 3553402980, 4264083576, 5330104470, 7106805960, 10660208940, 21320417880]

約数ペア:

[(1, 21320417880), (2, 10660208940), (3, 7106805960), (4, 5330104470), (5, 4264083576), (6, 3553402980), (8, 2665052235), (9, 2368935320), (10, 2132041788), (12, 1776701490), (15, 1421361192), (18, 1184467660), (20, 1066020894), (24, 888350745), (30, 710680596), (36, 592233830), (40, 533010447), (45, 473787064), (60, 355340298), (72, 296116915), (90, 236893532), (120, 177670149), (157, 135798840), (180, 118446766), (314, 67899420), (360, 59223383), (471, 45266280), (628, 33949710), (785, 27159768), (942, 22633140), (1256, 16974855), (1413, 15088760), (1570, 13579884), (1884, 11316570), (2355, 9053256), (2826, 7544380), (3140, 6789942), (3768, 5658285), (4710, 4526628), (5652, 3772190), (6280, 3394971), (7065, 3017752), (9420, 2263314), (11304, 1886095), (14130, 1508876), (18840, 1131657), (28260, 754438), (56520, 377219)]