638901432

素因数分解:

$2^3\times 3^7\times {\mathrm{13}}^1\times {\mathrm{53}}^2$

素因数の和:146

約数の個数: 192

約数和(自身を含む): 1972034400

約数和(自身を除く): 1333132968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 53, 54, 72, 78, 81, 104, 106, 108, 117, 156, 159, 162, 212, 216, 234, 243, 312, 318, 324, 351, 424, 468, 477, 486, 636, 648, 689, 702, 729, 936, 954, 972, 1053, 1272, 1378, 1404, 1431, 1458, 1908, 1944, 2067, 2106, 2187, 2756, 2808, 2809, 2862, 2916, 3159, 3816, 4134, 4212, 4293, 4374, 5512, 5618, 5724, 5832, 6201, 6318, 8268, 8424, 8427, 8586, 8748, 9477, 11236, 11448, 12402, 12636, 12879, 16536, 16854, 17172, 17496, 18603, 18954, 22472, 24804, 25272, 25281, 25758, 28431, 33708, 34344, 36517, 37206, 37908, 38637, 49608, 50562, 51516, 55809, 56862, 67416, 73034, 74412, 75816, 75843, 77274, 101124, 103032, 109551, 111618, 113724, 115911, 146068, 148824, 151686, 154548, 167427, 202248, 219102, 223236, 227448, 227529, 231822, 292136, 303372, 309096, 328653, 334854, 438204, 446472, 455058, 463644, 502281, 606744, 657306, 669708, 682587, 876408, 910116, 927288, 985959, 1004562, 1314612, 1339416, 1365174, 1506843, 1820232, 1971918, 2009124, 2047761, 2629224, 2730348, 2957877, 3013686, 3943836, 4018248, 4095522, 5460696, 5915754, 6027372, 6143283, 7887672, 8191044, 8873631, 11831508, 12054744, 12286566, 16382088, 17747262, 23663016, 24573132, 26620893, 35494524, 49146264, 53241786, 70989048, 79862679, 106483572, 159725358, 212967144, 319450716, 638901432]

約数ペア:

[(1, 638901432), (2, 319450716), (3, 212967144), (4, 159725358), (6, 106483572), (8, 79862679), (9, 70989048), (12, 53241786), (13, 49146264), (18, 35494524), (24, 26620893), (26, 24573132), (27, 23663016), (36, 17747262), (39, 16382088), (52, 12286566), (53, 12054744), (54, 11831508), (72, 8873631), (78, 8191044), (81, 7887672), (104, 6143283), (106, 6027372), (108, 5915754), (117, 5460696), (156, 4095522), (159, 4018248), (162, 3943836), (212, 3013686), (216, 2957877), (234, 2730348), (243, 2629224), (312, 2047761), (318, 2009124), (324, 1971918), (351, 1820232), (424, 1506843), (468, 1365174), (477, 1339416), (486, 1314612), (636, 1004562), (648, 985959), (689, 927288), (702, 910116), (729, 876408), (936, 682587), (954, 669708), (972, 657306), (1053, 606744), (1272, 502281), (1378, 463644), (1404, 455058), (1431, 446472), (1458, 438204), (1908, 334854), (1944, 328653), (2067, 309096), (2106, 303372), (2187, 292136), (2756, 231822), (2808, 227529), (2809, 227448), (2862, 223236), (2916, 219102), (3159, 202248), (3816, 167427), (4134, 154548), (4212, 151686), (4293, 148824), (4374, 146068), (5512, 115911), (5618, 113724), (5724, 111618), (5832, 109551), (6201, 103032), (6318, 101124), (8268, 77274), (8424, 75843), (8427, 75816), (8586, 74412), (8748, 73034), (9477, 67416), (11236, 56862), (11448, 55809), (12402, 51516), (12636, 50562), (12879, 49608), (16536, 38637), (16854, 37908), (17172, 37206), (17496, 36517), (18603, 34344), (18954, 33708), (22472, 28431), (24804, 25758), (25272, 25281)]