209414920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1181}}^1$

素因数の和:1247

約数の個数: 128

約数和(自身を含む): 571898880

約数和(自身を除く): 362483960

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 31, 40, 44, 52, 55, 62, 65, 88, 104, 110, 124, 130, 143, 155, 220, 248, 260, 286, 310, 341, 403, 440, 520, 572, 620, 682, 715, 806, 1144, 1181, 1240, 1364, 1430, 1612, 1705, 2015, 2362, 2728, 2860, 3224, 3410, 4030, 4433, 4724, 5720, 5905, 6820, 8060, 8866, 9448, 11810, 12991, 13640, 15353, 16120, 17732, 22165, 23620, 25982, 30706, 35464, 36611, 44330, 47240, 51964, 61412, 64955, 73222, 76765, 88660, 103928, 122824, 129910, 146444, 153530, 168883, 177320, 183055, 259820, 292888, 307060, 337766, 366110, 402721, 475943, 519640, 614120, 675532, 732220, 805442, 844415, 951886, 1351064, 1464440, 1610884, 1688830, 1903772, 2013605, 2379715, 3221768, 3377660, 3807544, 4027210, 4759430, 5235373, 6755320, 8054420, 9518860, 10470746, 16108840, 19037720, 20941492, 26176865, 41882984, 52353730, 104707460, 209414920]

約数ペア:

[(1, 209414920), (2, 104707460), (4, 52353730), (5, 41882984), (8, 26176865), (10, 20941492), (11, 19037720), (13, 16108840), (20, 10470746), (22, 9518860), (26, 8054420), (31, 6755320), (40, 5235373), (44, 4759430), (52, 4027210), (55, 3807544), (62, 3377660), (65, 3221768), (88, 2379715), (104, 2013605), (110, 1903772), (124, 1688830), (130, 1610884), (143, 1464440), (155, 1351064), (220, 951886), (248, 844415), (260, 805442), (286, 732220), (310, 675532), (341, 614120), (403, 519640), (440, 475943), (520, 402721), (572, 366110), (620, 337766), (682, 307060), (715, 292888), (806, 259820), (1144, 183055), (1181, 177320), (1240, 168883), (1364, 153530), (1430, 146444), (1612, 129910), (1705, 122824), (2015, 103928), (2362, 88660), (2728, 76765), (2860, 73222), (3224, 64955), (3410, 61412), (4030, 51964), (4433, 47240), (4724, 44330), (5720, 36611), (5905, 35464), (6820, 30706), (8060, 25982), (8866, 23620), (9448, 22165), (11810, 17732), (12991, 16120), (13640, 15353)]