213203375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1303}}^1$

素因数の和:1353

約数の個数: 64

約数和(自身を含む): 351516672

約数和(自身を除く): 138313297

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 77, 85, 119, 125, 175, 187, 275, 385, 425, 595, 875, 935, 1303, 1309, 1375, 1925, 2125, 2975, 4675, 6515, 6545, 9121, 9625, 14333, 14875, 22151, 23375, 32575, 32725, 45605, 71665, 100331, 110755, 155057, 162875, 163625, 228025, 243661, 358325, 501655, 553775, 775285, 1140125, 1218305, 1705627, 1791625, 2508275, 2768875, 3876425, 6091525, 8528135, 12541375, 19382125, 30457625, 42640675, 213203375]

約数ペア:

[(1, 213203375), (5, 42640675), (7, 30457625), (11, 19382125), (17, 12541375), (25, 8528135), (35, 6091525), (55, 3876425), (77, 2768875), (85, 2508275), (119, 1791625), (125, 1705627), (175, 1218305), (187, 1140125), (275, 775285), (385, 553775), (425, 501655), (595, 358325), (875, 243661), (935, 228025), (1303, 163625), (1309, 162875), (1375, 155057), (1925, 110755), (2125, 100331), (2975, 71665), (4675, 45605), (6515, 32725), (6545, 32575), (9121, 23375), (9625, 22151), (14333, 14875)]