2171600

素因数分解:

$2^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:168

約数の個数: 60

約数和(自身を含む): 5362380

約数和(自身を除く): 3190780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 61, 80, 89, 100, 122, 178, 200, 244, 305, 356, 400, 445, 488, 610, 712, 890, 976, 1220, 1424, 1525, 1780, 2225, 2440, 3050, 3560, 4450, 4880, 5429, 6100, 7120, 8900, 10858, 12200, 17800, 21716, 24400, 27145, 35600, 43432, 54290, 86864, 108580, 135725, 217160, 271450, 434320, 542900, 1085800, 2171600]

約数ペア:

[(1, 2171600), (2, 1085800), (4, 542900), (5, 434320), (8, 271450), (10, 217160), (16, 135725), (20, 108580), (25, 86864), (40, 54290), (50, 43432), (61, 35600), (80, 27145), (89, 24400), (100, 21716), (122, 17800), (178, 12200), (200, 10858), (244, 8900), (305, 7120), (356, 6100), (400, 5429), (445, 4880), (488, 4450), (610, 3560), (712, 3050), (890, 2440), (976, 2225), (1220, 1780), (1424, 1525)]