42643720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{21757}}^1$

素因数の和:21782

約数の個数: 48

約数和(自身を含む): 111618540

約数和(自身を除く): 68974820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 21757, 43514, 87028, 108785, 152299, 174056, 217570, 304598, 435140, 609196, 761495, 870280, 1066093, 1218392, 1522990, 2132186, 3045980, 4264372, 5330465, 6091960, 8528744, 10660930, 21321860, 42643720]

約数ペア:

[(1, 42643720), (2, 21321860), (4, 10660930), (5, 8528744), (7, 6091960), (8, 5330465), (10, 4264372), (14, 3045980), (20, 2132186), (28, 1522990), (35, 1218392), (40, 1066093), (49, 870280), (56, 761495), (70, 609196), (98, 435140), (140, 304598), (196, 217570), (245, 174056), (280, 152299), (392, 108785), (490, 87028), (980, 43514), (1960, 21757)]