40193720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20507}}^1$

素因数の和:20532

約数の個数: 48

約数和(自身を含む): 105206040

約数和(自身を除く): 65012320

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, 20507, 41014, 82028, 102535, 143549, 164056, 205070, 287098, 410140, 574196, 717745, 820280, 1004843, 1148392, 1435490, 2009686, 2870980, 4019372, 5024215, 5741960, 8038744, 10048430, 20096860, 40193720]

約数ペア:

[(1, 40193720), (2, 20096860), (4, 10048430), (5, 8038744), (7, 5741960), (8, 5024215), (10, 4019372), (14, 2870980), (20, 2009686), (28, 1435490), (35, 1148392), (40, 1004843), (49, 820280), (56, 717745), (70, 574196), (98, 410140), (140, 287098), (196, 205070), (245, 164056), (280, 143549), (392, 102535), (490, 82028), (980, 41014), (1960, 20507)]