80004060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:340

約数の個数: 144

約数和(自身を含む): 258804000

約数和(自身を除く): 178799940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 149, 157, 171, 180, 190, 228, 285, 298, 314, 342, 380, 447, 471, 570, 596, 628, 684, 745, 785, 855, 894, 942, 1140, 1341, 1413, 1490, 1570, 1710, 1788, 1884, 2235, 2355, 2682, 2826, 2831, 2980, 2983, 3140, 3420, 4470, 4710, 5364, 5652, 5662, 5966, 6705, 7065, 8493, 8940, 8949, 9420, 11324, 11932, 13410, 14130, 14155, 14915, 16986, 17898, 23393, 25479, 26820, 26847, 28260, 28310, 29830, 33972, 35796, 42465, 44745, 46786, 50958, 53694, 56620, 59660, 70179, 84930, 89490, 93572, 101916, 107388, 116965, 127395, 134235, 140358, 169860, 178980, 210537, 233930, 254790, 268470, 280716, 350895, 421074, 444467, 467860, 509580, 536940, 701790, 842148, 888934, 1052685, 1333401, 1403580, 1777868, 2105370, 2222335, 2666802, 4000203, 4210740, 4444670, 5333604, 6667005, 8000406, 8889340, 13334010, 16000812, 20001015, 26668020, 40002030, 80004060]

約数ペア:

[(1, 80004060), (2, 40002030), (3, 26668020), (4, 20001015), (5, 16000812), (6, 13334010), (9, 8889340), (10, 8000406), (12, 6667005), (15, 5333604), (18, 4444670), (19, 4210740), (20, 4000203), (30, 2666802), (36, 2222335), (38, 2105370), (45, 1777868), (57, 1403580), (60, 1333401), (76, 1052685), (90, 888934), (95, 842148), (114, 701790), (149, 536940), (157, 509580), (171, 467860), (180, 444467), (190, 421074), (228, 350895), (285, 280716), (298, 268470), (314, 254790), (342, 233930), (380, 210537), (447, 178980), (471, 169860), (570, 140358), (596, 134235), (628, 127395), (684, 116965), (745, 107388), (785, 101916), (855, 93572), (894, 89490), (942, 84930), (1140, 70179), (1341, 59660), (1413, 56620), (1490, 53694), (1570, 50958), (1710, 46786), (1788, 44745), (1884, 42465), (2235, 35796), (2355, 33972), (2682, 29830), (2826, 28310), (2831, 28260), (2980, 26847), (2983, 26820), (3140, 25479), (3420, 23393), (4470, 17898), (4710, 16986), (5364, 14915), (5652, 14155), (5662, 14130), (5966, 13410), (6705, 11932), (7065, 11324), (8493, 9420), (8940, 8949)]