663539420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2\times {\mathrm{653}}^1$

素因数の和:779

約数の個数: 72

約数和(自身を含む): 1487886624

約数和(自身を除く): 824347204

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 653, 940, 1081, 1306, 2162, 2209, 2612, 3265, 4324, 4418, 5405, 6530, 8836, 10810, 11045, 13060, 15019, 21620, 22090, 30038, 30691, 44180, 50807, 60076, 61382, 75095, 101614, 122764, 150190, 153455, 203228, 254035, 300380, 306910, 508070, 613820, 705893, 1016140, 1411786, 1442477, 2823572, 2884954, 3529465, 5769908, 7058930, 7212385, 14117860, 14424770, 28849540, 33176971, 66353942, 132707884, 165884855, 331769710, 663539420]

約数ペア:

[(1, 663539420), (2, 331769710), (4, 165884855), (5, 132707884), (10, 66353942), (20, 33176971), (23, 28849540), (46, 14424770), (47, 14117860), (92, 7212385), (94, 7058930), (115, 5769908), (188, 3529465), (230, 2884954), (235, 2823572), (460, 1442477), (470, 1411786), (653, 1016140), (940, 705893), (1081, 613820), (1306, 508070), (2162, 306910), (2209, 300380), (2612, 254035), (3265, 203228), (4324, 153455), (4418, 150190), (5405, 122764), (6530, 101614), (8836, 75095), (10810, 61382), (11045, 60076), (13060, 50807), (15019, 44180), (21620, 30691), (22090, 30038)]