311027990

素因数分解:

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

素因数の和:502

約数の個数: 96

約数和(自身を含む): 708087744

約数和(自身を除く): 397059754

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 157, 182, 245, 311, 314, 455, 490, 622, 637, 785, 910, 1099, 1274, 1555, 1570, 2041, 2177, 2198, 3110, 3185, 4043, 4082, 4354, 5495, 6370, 7693, 8086, 10205, 10885, 10990, 14287, 15239, 15386, 20215, 20410, 21770, 28301, 28574, 30478, 38465, 40430, 48827, 56602, 71435, 76195, 76930, 97654, 100009, 141505, 142870, 152390, 198107, 200018, 244135, 283010, 341789, 396214, 488270, 500045, 634751, 683578, 990535, 1000090, 1269502, 1708945, 1981070, 2392523, 3173755, 3417890, 4443257, 4785046, 6347510, 8886514, 11962615, 22216285, 23925230, 31102799, 44432570, 62205598, 155513995, 311027990]

約数ペア:

[(1, 311027990), (2, 155513995), (5, 62205598), (7, 44432570), (10, 31102799), (13, 23925230), (14, 22216285), (26, 11962615), (35, 8886514), (49, 6347510), (65, 4785046), (70, 4443257), (91, 3417890), (98, 3173755), (130, 2392523), (157, 1981070), (182, 1708945), (245, 1269502), (311, 1000090), (314, 990535), (455, 683578), (490, 634751), (622, 500045), (637, 488270), (785, 396214), (910, 341789), (1099, 283010), (1274, 244135), (1555, 200018), (1570, 198107), (2041, 152390), (2177, 142870), (2198, 141505), (3110, 100009), (3185, 97654), (4043, 76930), (4082, 76195), (4354, 71435), (5495, 56602), (6370, 48827), (7693, 40430), (8086, 38465), (10205, 30478), (10885, 28574), (10990, 28301), (14287, 21770), (15239, 20410), (15386, 20215)]