39995956

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1427}}^1$

素因数の和:1469

約数の個数: 72

約数和(自身を含む): 95721696

約数和(自身を除く): 55725740

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 1001, 1078, 1274, 1427, 2002, 2156, 2548, 2854, 4004, 5708, 7007, 9989, 14014, 15697, 18551, 19978, 28028, 31394, 37102, 39956, 62788, 69923, 74204, 109879, 129857, 139846, 204061, 219758, 259714, 279692, 408122, 439516, 519428, 769153, 816244, 908999, 1428427, 1538306, 1817998, 2856854, 3076612, 3635996, 5713708, 9998989, 19997978, 39995956]

約数ペア:

[(1, 39995956), (2, 19997978), (4, 9998989), (7, 5713708), (11, 3635996), (13, 3076612), (14, 2856854), (22, 1817998), (26, 1538306), (28, 1428427), (44, 908999), (49, 816244), (52, 769153), (77, 519428), (91, 439516), (98, 408122), (143, 279692), (154, 259714), (182, 219758), (196, 204061), (286, 139846), (308, 129857), (364, 109879), (539, 74204), (572, 69923), (637, 62788), (1001, 39956), (1078, 37102), (1274, 31394), (1427, 28028), (2002, 19978), (2156, 18551), (2548, 15697), (2854, 14014), (4004, 9989), (5708, 7007)]