21902720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4889}}^1$

素因数の和:4915

約数の個数: 64

約数和(自身を含む): 59853600

約数和(自身を除く): 37950880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4889, 9778, 19556, 24445, 34223, 39112, 48890, 68446, 78224, 97780, 136892, 156448, 171115, 195560, 273784, 312896, 342230, 391120, 547568, 625792, 684460, 782240, 1095136, 1368920, 1564480, 2190272, 2737840, 3128960, 4380544, 5475680, 10951360, 21902720]

約数ペア:

[(1, 21902720), (2, 10951360), (4, 5475680), (5, 4380544), (7, 3128960), (8, 2737840), (10, 2190272), (14, 1564480), (16, 1368920), (20, 1095136), (28, 782240), (32, 684460), (35, 625792), (40, 547568), (56, 391120), (64, 342230), (70, 312896), (80, 273784), (112, 195560), (128, 171115), (140, 156448), (160, 136892), (224, 97780), (280, 78224), (320, 68446), (448, 48890), (560, 39112), (640, 34223), (896, 24445), (1120, 19556), (2240, 9778), (4480, 4889)]