28005400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4517}}^1$

素因数の和:4564

約数の個数: 48

約数和(自身を含む): 67227840

約数和(自身を除く): 39222440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 4517, 6200, 9034, 18068, 22585, 36136, 45170, 90340, 112925, 140027, 180680, 225850, 280054, 451700, 560108, 700135, 903400, 1120216, 1400270, 2800540, 3500675, 5601080, 7001350, 14002700, 28005400]

約数ペア:

[(1, 28005400), (2, 14002700), (4, 7001350), (5, 5601080), (8, 3500675), (10, 2800540), (20, 1400270), (25, 1120216), (31, 903400), (40, 700135), (50, 560108), (62, 451700), (100, 280054), (124, 225850), (155, 180680), (200, 140027), (248, 112925), (310, 90340), (620, 45170), (775, 36136), (1240, 22585), (1550, 18068), (3100, 9034), (4517, 6200)]