28394280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:512

約数の個数: 128

約数和(自身を含む): 96422400

約数和(自身を除く): 68028120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 61, 72, 90, 108, 120, 122, 135, 180, 183, 216, 244, 270, 305, 360, 366, 431, 488, 540, 549, 610, 732, 862, 915, 1080, 1098, 1220, 1293, 1464, 1647, 1724, 1830, 2155, 2196, 2440, 2586, 2745, 3294, 3448, 3660, 3879, 4310, 4392, 5172, 5490, 6465, 6588, 7320, 7758, 8235, 8620, 10344, 10980, 11637, 12930, 13176, 15516, 16470, 17240, 19395, 21960, 23274, 25860, 26291, 31032, 32940, 38790, 46548, 51720, 52582, 58185, 65880, 77580, 78873, 93096, 105164, 116370, 131455, 155160, 157746, 210328, 232740, 236619, 262910, 315492, 394365, 465480, 473238, 525820, 630984, 709857, 788730, 946476, 1051640, 1183095, 1419714, 1577460, 1892952, 2366190, 2839428, 3154920, 3549285, 4732380, 5678856, 7098570, 9464760, 14197140, 28394280]

約数ペア:

[(1, 28394280), (2, 14197140), (3, 9464760), (4, 7098570), (5, 5678856), (6, 4732380), (8, 3549285), (9, 3154920), (10, 2839428), (12, 2366190), (15, 1892952), (18, 1577460), (20, 1419714), (24, 1183095), (27, 1051640), (30, 946476), (36, 788730), (40, 709857), (45, 630984), (54, 525820), (60, 473238), (61, 465480), (72, 394365), (90, 315492), (108, 262910), (120, 236619), (122, 232740), (135, 210328), (180, 157746), (183, 155160), (216, 131455), (244, 116370), (270, 105164), (305, 93096), (360, 78873), (366, 77580), (431, 65880), (488, 58185), (540, 52582), (549, 51720), (610, 46548), (732, 38790), (862, 32940), (915, 31032), (1080, 26291), (1098, 25860), (1220, 23274), (1293, 21960), (1464, 19395), (1647, 17240), (1724, 16470), (1830, 15516), (2155, 13176), (2196, 12930), (2440, 11637), (2586, 10980), (2745, 10344), (3294, 8620), (3448, 8235), (3660, 7758), (3879, 7320), (4310, 6588), (4392, 6465), (5172, 5490)]