80211720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{757}}^1\times {\mathrm{883}}^1$

素因数の和:1654

約数の個数: 64

約数和(自身を含む): 241225920

約数和(自身を除く): 161014200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 757, 883, 1514, 1766, 2271, 2649, 3028, 3532, 3785, 4415, 4542, 5298, 6056, 7064, 7570, 8830, 9084, 10596, 11355, 13245, 15140, 17660, 18168, 21192, 22710, 26490, 30280, 35320, 45420, 52980, 90840, 105960, 668431, 1336862, 2005293, 2673724, 3342155, 4010586, 5347448, 6684310, 8021172, 10026465, 13368620, 16042344, 20052930, 26737240, 40105860, 80211720]

約数ペア:

[(1, 80211720), (2, 40105860), (3, 26737240), (4, 20052930), (5, 16042344), (6, 13368620), (8, 10026465), (10, 8021172), (12, 6684310), (15, 5347448), (20, 4010586), (24, 3342155), (30, 2673724), (40, 2005293), (60, 1336862), (120, 668431), (757, 105960), (883, 90840), (1514, 52980), (1766, 45420), (2271, 35320), (2649, 30280), (3028, 26490), (3532, 22710), (3785, 21192), (4415, 18168), (4542, 17660), (5298, 15140), (6056, 13245), (7064, 11355), (7570, 10596), (8830, 9084)]