177730280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:499

約数の個数: 128

約数和(自身を含む): 496903680

約数和(自身を除く): 319173400

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 157, 182, 260, 280, 311, 314, 364, 455, 520, 622, 628, 728, 785, 910, 1099, 1244, 1256, 1555, 1570, 1820, 2041, 2177, 2198, 2488, 3110, 3140, 3640, 4043, 4082, 4354, 4396, 5495, 6220, 6280, 8086, 8164, 8708, 8792, 10205, 10885, 10990, 12440, 14287, 16172, 16328, 17416, 20215, 20410, 21770, 21980, 28301, 28574, 32344, 40430, 40820, 43540, 43960, 48827, 56602, 57148, 71435, 80860, 81640, 87080, 97654, 113204, 114296, 141505, 142870, 161720, 195308, 226408, 244135, 283010, 285740, 341789, 390616, 488270, 566020, 571480, 634751, 683578, 976540, 1132040, 1269502, 1367156, 1708945, 1953080, 2539004, 2734312, 3173755, 3417890, 4443257, 5078008, 6347510, 6835780, 8886514, 12695020, 13671560, 17773028, 22216285, 25390040, 35546056, 44432570, 88865140, 177730280]

約数ペア:

[(1, 177730280), (2, 88865140), (4, 44432570), (5, 35546056), (7, 25390040), (8, 22216285), (10, 17773028), (13, 13671560), (14, 12695020), (20, 8886514), (26, 6835780), (28, 6347510), (35, 5078008), (40, 4443257), (52, 3417890), (56, 3173755), (65, 2734312), (70, 2539004), (91, 1953080), (104, 1708945), (130, 1367156), (140, 1269502), (157, 1132040), (182, 976540), (260, 683578), (280, 634751), (311, 571480), (314, 566020), (364, 488270), (455, 390616), (520, 341789), (622, 285740), (628, 283010), (728, 244135), (785, 226408), (910, 195308), (1099, 161720), (1244, 142870), (1256, 141505), (1555, 114296), (1570, 113204), (1820, 97654), (2041, 87080), (2177, 81640), (2198, 80860), (2488, 71435), (3110, 57148), (3140, 56602), (3640, 48827), (4043, 43960), (4082, 43540), (4354, 40820), (4396, 40430), (5495, 32344), (6220, 28574), (6280, 28301), (8086, 21980), (8164, 21770), (8708, 20410), (8792, 20215), (10205, 17416), (10885, 16328), (10990, 16172), (12440, 14287)]