245112868

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{277}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 615371904

約数和(自身を除く): 370259036

約数列:

[1, 2, 4, 7, 11, 13, 14, 17, 22, 26, 28, 34, 44, 52, 68, 77, 91, 119, 143, 154, 169, 182, 187, 221, 238, 277, 286, 308, 338, 364, 374, 442, 476, 554, 572, 676, 748, 884, 1001, 1108, 1183, 1309, 1547, 1859, 1939, 2002, 2366, 2431, 2618, 2873, 3047, 3094, 3601, 3718, 3878, 4004, 4709, 4732, 4862, 5236, 5746, 6094, 6188, 7202, 7436, 7756, 9418, 9724, 11492, 12188, 13013, 14404, 17017, 18836, 20111, 21329, 25207, 26026, 31603, 32963, 34034, 39611, 40222, 42658, 46813, 50414, 51799, 52052, 61217, 63206, 65926, 68068, 79222, 80444, 85316, 93626, 100828, 103598, 122434, 126412, 131852, 158444, 187252, 207196, 221221, 244868, 277277, 327691, 362593, 428519, 442442, 514943, 554554, 655382, 673387, 725186, 795821, 857038, 884884, 1029886, 1109108, 1310764, 1346774, 1450372, 1591642, 1714076, 2059772, 2693548, 3183284, 3604601, 4713709, 5570747, 7209202, 8754031, 9427418, 11141494, 14418404, 17508062, 18854836, 22282988, 35016124, 61278217, 122556434, 245112868]

約数ペア:

[(1, 245112868), (2, 122556434), (4, 61278217), (7, 35016124), (11, 22282988), (13, 18854836), (14, 17508062), (17, 14418404), (22, 11141494), (26, 9427418), (28, 8754031), (34, 7209202), (44, 5570747), (52, 4713709), (68, 3604601), (77, 3183284), (91, 2693548), (119, 2059772), (143, 1714076), (154, 1591642), (169, 1450372), (182, 1346774), (187, 1310764), (221, 1109108), (238, 1029886), (277, 884884), (286, 857038), (308, 795821), (338, 725186), (364, 673387), (374, 655382), (442, 554554), (476, 514943), (554, 442442), (572, 428519), (676, 362593), (748, 327691), (884, 277277), (1001, 244868), (1108, 221221), (1183, 207196), (1309, 187252), (1547, 158444), (1859, 131852), (1939, 126412), (2002, 122434), (2366, 103598), (2431, 100828), (2618, 93626), (2873, 85316), (3047, 80444), (3094, 79222), (3601, 68068), (3718, 65926), (3878, 63206), (4004, 61217), (4709, 52052), (4732, 51799), (4862, 50414), (5236, 46813), (5746, 42658), (6094, 40222), (6188, 39611), (7202, 34034), (7436, 32963), (7756, 31603), (9418, 26026), (9724, 25207), (11492, 21329), (12188, 20111), (13013, 18836), (14404, 17017)]