21662800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1747}}^1$

素因数の和:1796

約数の個数: 60

約数和(自身を含む): 53754496

約数和(自身を除く): 32091696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 1747, 2480, 3100, 3494, 6200, 6988, 8735, 12400, 13976, 17470, 27952, 34940, 43675, 54157, 69880, 87350, 108314, 139760, 174700, 216628, 270785, 349400, 433256, 541570, 698800, 866512, 1083140, 1353925, 2166280, 2707850, 4332560, 5415700, 10831400, 21662800]

約数ペア:

[(1, 21662800), (2, 10831400), (4, 5415700), (5, 4332560), (8, 2707850), (10, 2166280), (16, 1353925), (20, 1083140), (25, 866512), (31, 698800), (40, 541570), (50, 433256), (62, 349400), (80, 270785), (100, 216628), (124, 174700), (155, 139760), (200, 108314), (248, 87350), (310, 69880), (400, 54157), (496, 43675), (620, 34940), (775, 27952), (1240, 17470), (1550, 13976), (1747, 12400), (2480, 8735), (3100, 6988), (3494, 6200)]