80786860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:308

約数の個数: 144

約数和(自身を含む): 225227520

約数和(自身を除く): 144440660

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 121, 133, 140, 154, 190, 209, 220, 242, 251, 266, 308, 380, 385, 418, 484, 502, 532, 605, 665, 770, 836, 847, 1004, 1045, 1210, 1255, 1330, 1463, 1540, 1694, 1757, 2090, 2299, 2420, 2510, 2660, 2761, 2926, 3388, 3514, 4180, 4235, 4598, 4769, 5020, 5522, 5852, 7028, 7315, 8470, 8785, 9196, 9538, 11044, 11495, 13805, 14630, 16093, 16940, 17570, 19076, 19327, 22990, 23845, 27610, 29260, 30371, 32186, 33383, 35140, 38654, 45980, 47690, 52459, 55220, 60742, 64372, 66766, 77308, 80465, 95380, 96635, 104918, 121484, 133532, 151855, 160930, 166915, 193270, 209836, 212597, 262295, 303710, 321860, 333830, 367213, 386540, 425194, 524590, 577049, 607420, 667660, 734426, 850388, 1049180, 1062985, 1154098, 1468852, 1836065, 2125970, 2308196, 2885245, 3672130, 4039343, 4251940, 5770490, 7344260, 8078686, 11540980, 16157372, 20196715, 40393430, 80786860]

約数ペア:

[(1, 80786860), (2, 40393430), (4, 20196715), (5, 16157372), (7, 11540980), (10, 8078686), (11, 7344260), (14, 5770490), (19, 4251940), (20, 4039343), (22, 3672130), (28, 2885245), (35, 2308196), (38, 2125970), (44, 1836065), (55, 1468852), (70, 1154098), (76, 1062985), (77, 1049180), (95, 850388), (110, 734426), (121, 667660), (133, 607420), (140, 577049), (154, 524590), (190, 425194), (209, 386540), (220, 367213), (242, 333830), (251, 321860), (266, 303710), (308, 262295), (380, 212597), (385, 209836), (418, 193270), (484, 166915), (502, 160930), (532, 151855), (605, 133532), (665, 121484), (770, 104918), (836, 96635), (847, 95380), (1004, 80465), (1045, 77308), (1210, 66766), (1255, 64372), (1330, 60742), (1463, 55220), (1540, 52459), (1694, 47690), (1757, 45980), (2090, 38654), (2299, 35140), (2420, 33383), (2510, 32186), (2660, 30371), (2761, 29260), (2926, 27610), (3388, 23845), (3514, 22990), (4180, 19327), (4235, 19076), (4598, 17570), (4769, 16940), (5020, 16093), (5522, 14630), (5852, 13805), (7028, 11495), (7315, 11044), (8470, 9538), (8785, 9196)]