51687480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1949}}^1$

素因数の和:1993

約数の個数: 128

約数和(自身を含む): 176904000

約数和(自身を除く): 125216520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 312, 340, 390, 408, 442, 510, 520, 663, 680, 780, 884, 1020, 1105, 1326, 1560, 1768, 1949, 2040, 2210, 2652, 3315, 3898, 4420, 5304, 5847, 6630, 7796, 8840, 9745, 11694, 13260, 15592, 19490, 23388, 25337, 26520, 29235, 33133, 38980, 46776, 50674, 58470, 66266, 76011, 77960, 99399, 101348, 116940, 126685, 132532, 152022, 165665, 198798, 202696, 233880, 253370, 265064, 304044, 331330, 380055, 397596, 430729, 496995, 506740, 608088, 662660, 760110, 795192, 861458, 993990, 1013480, 1292187, 1325320, 1520220, 1722916, 1987980, 2153645, 2584374, 3040440, 3445832, 3975960, 4307290, 5168748, 6460935, 8614580, 10337496, 12921870, 17229160, 25843740, 51687480]

約数ペア:

[(1, 51687480), (2, 25843740), (3, 17229160), (4, 12921870), (5, 10337496), (6, 8614580), (8, 6460935), (10, 5168748), (12, 4307290), (13, 3975960), (15, 3445832), (17, 3040440), (20, 2584374), (24, 2153645), (26, 1987980), (30, 1722916), (34, 1520220), (39, 1325320), (40, 1292187), (51, 1013480), (52, 993990), (60, 861458), (65, 795192), (68, 760110), (78, 662660), (85, 608088), (102, 506740), (104, 496995), (120, 430729), (130, 397596), (136, 380055), (156, 331330), (170, 304044), (195, 265064), (204, 253370), (221, 233880), (255, 202696), (260, 198798), (312, 165665), (340, 152022), (390, 132532), (408, 126685), (442, 116940), (510, 101348), (520, 99399), (663, 77960), (680, 76011), (780, 66266), (884, 58470), (1020, 50674), (1105, 46776), (1326, 38980), (1560, 33133), (1768, 29235), (1949, 26520), (2040, 25337), (2210, 23388), (2652, 19490), (3315, 15592), (3898, 13260), (4420, 11694), (5304, 9745), (5847, 8840), (6630, 7796)]