66128440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{33739}}^1$

素因数の和:33764

約数の個数: 48

約数和(自身を含む): 173086200

約数和(自身を除く): 106957760

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, 33739, 67478, 134956, 168695, 236173, 269912, 337390, 472346, 674780, 944692, 1180865, 1349560, 1653211, 1889384, 2361730, 3306422, 4723460, 6612844, 8266055, 9446920, 13225688, 16532110, 33064220, 66128440]

約数ペア:

[(1, 66128440), (2, 33064220), (4, 16532110), (5, 13225688), (7, 9446920), (8, 8266055), (10, 6612844), (14, 4723460), (20, 3306422), (28, 2361730), (35, 1889384), (40, 1653211), (49, 1349560), (56, 1180865), (70, 944692), (98, 674780), (140, 472346), (196, 337390), (245, 269912), (280, 236173), (392, 168695), (490, 134956), (980, 67478), (1960, 33739)]