549999520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 216

約数和(自身を含む): 1583243172

約数和(自身を除く): 1033243652

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 70, 73, 80, 98, 112, 124, 140, 146, 155, 160, 196, 217, 224, 245, 248, 280, 292, 310, 365, 392, 434, 490, 496, 511, 560, 584, 620, 730, 784, 868, 961, 980, 992, 1022, 1085, 1120, 1168, 1240, 1460, 1519, 1568, 1736, 1922, 1960, 2044, 2170, 2263, 2336, 2480, 2555, 2920, 3038, 3472, 3577, 3844, 3920, 4088, 4340, 4526, 4805, 4960, 5110, 5840, 6076, 6727, 6944, 7154, 7595, 7688, 7840, 8176, 8680, 9052, 9610, 10220, 11315, 11680, 12152, 13454, 14308, 15190, 15376, 15841, 16352, 17360, 17885, 18104, 19220, 20440, 22630, 24304, 26908, 28616, 30380, 30752, 31682, 33635, 34720, 35770, 36208, 38440, 40880, 45260, 47089, 48608, 53816, 57232, 60760, 63364, 67270, 70153, 71540, 72416, 76880, 79205, 81760, 90520, 94178, 107632, 110887, 114464, 121520, 126728, 134540, 140306, 143080, 153760, 158410, 181040, 188356, 215264, 221774, 235445, 243040, 253456, 269080, 280612, 286160, 316820, 350765, 362080, 376712, 443548, 470890, 491071, 506912, 538160, 554435, 561224, 572320, 633640, 701530, 753424, 887096, 941780, 982142, 1076320, 1108870, 1122448, 1267280, 1403060, 1506848, 1774192, 1883560, 1964284, 2217740, 2244896, 2455355, 2534560, 2806120, 3437497, 3548384, 3767120, 3928568, 4435480, 4910710, 5612240, 6874994, 7534240, 7857136, 8870960, 9821420, 11224480, 13749988, 15714272, 17187485, 17741920, 19642840, 27499976, 34374970, 39285680, 54999952, 68749940, 78571360, 109999904, 137499880, 274999760, 549999520]

約数ペア:

[(1, 549999520), (2, 274999760), (4, 137499880), (5, 109999904), (7, 78571360), (8, 68749940), (10, 54999952), (14, 39285680), (16, 34374970), (20, 27499976), (28, 19642840), (31, 17741920), (32, 17187485), (35, 15714272), (40, 13749988), (49, 11224480), (56, 9821420), (62, 8870960), (70, 7857136), (73, 7534240), (80, 6874994), (98, 5612240), (112, 4910710), (124, 4435480), (140, 3928568), (146, 3767120), (155, 3548384), (160, 3437497), (196, 2806120), (217, 2534560), (224, 2455355), (245, 2244896), (248, 2217740), (280, 1964284), (292, 1883560), (310, 1774192), (365, 1506848), (392, 1403060), (434, 1267280), (490, 1122448), (496, 1108870), (511, 1076320), (560, 982142), (584, 941780), (620, 887096), (730, 753424), (784, 701530), (868, 633640), (961, 572320), (980, 561224), (992, 554435), (1022, 538160), (1085, 506912), (1120, 491071), (1168, 470890), (1240, 443548), (1460, 376712), (1519, 362080), (1568, 350765), (1736, 316820), (1922, 286160), (1960, 280612), (2044, 269080), (2170, 253456), (2263, 243040), (2336, 235445), (2480, 221774), (2555, 215264), (2920, 188356), (3038, 181040), (3472, 158410), (3577, 153760), (3844, 143080), (3920, 140306), (4088, 134540), (4340, 126728), (4526, 121520), (4805, 114464), (4960, 110887), (5110, 107632), (5840, 94178), (6076, 90520), (6727, 81760), (6944, 79205), (7154, 76880), (7595, 72416), (7688, 71540), (7840, 70153), (8176, 67270), (8680, 63364), (9052, 60760), (9610, 57232), (10220, 53816), (11315, 48608), (11680, 47089), (12152, 45260), (13454, 40880), (14308, 38440), (15190, 36208), (15376, 35770), (15841, 34720), (16352, 33635), (17360, 31682), (17885, 30752), (18104, 30380), (19220, 28616), (20440, 26908), (22630, 24304)]