21310240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:434

約数の個数: 96

約数和(自身を含む): 58786560

約数和(自身を除く): 37476320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 53, 56, 70, 80, 106, 112, 140, 160, 212, 224, 265, 280, 359, 371, 424, 530, 560, 718, 742, 848, 1060, 1120, 1436, 1484, 1696, 1795, 1855, 2120, 2513, 2872, 2968, 3590, 3710, 4240, 5026, 5744, 5936, 7180, 7420, 8480, 10052, 11488, 11872, 12565, 14360, 14840, 19027, 20104, 25130, 28720, 29680, 38054, 40208, 50260, 57440, 59360, 76108, 80416, 95135, 100520, 133189, 152216, 190270, 201040, 266378, 304432, 380540, 402080, 532756, 608864, 665945, 761080, 1065512, 1331890, 1522160, 2131024, 2663780, 3044320, 4262048, 5327560, 10655120, 21310240]

約数ペア:

[(1, 21310240), (2, 10655120), (4, 5327560), (5, 4262048), (7, 3044320), (8, 2663780), (10, 2131024), (14, 1522160), (16, 1331890), (20, 1065512), (28, 761080), (32, 665945), (35, 608864), (40, 532756), (53, 402080), (56, 380540), (70, 304432), (80, 266378), (106, 201040), (112, 190270), (140, 152216), (160, 133189), (212, 100520), (224, 95135), (265, 80416), (280, 76108), (359, 59360), (371, 57440), (424, 50260), (530, 40208), (560, 38054), (718, 29680), (742, 28720), (848, 25130), (1060, 20104), (1120, 19027), (1436, 14840), (1484, 14360), (1696, 12565), (1795, 11872), (1855, 11488), (2120, 10052), (2513, 8480), (2872, 7420), (2968, 7180), (3590, 5936), (3710, 5744), (4240, 5026)]