1331195320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1597}}^1$

素因数の和:1857

約数の個数: 128

約数和(自身を含む): 3704803200

約数和(自身を除く): 2373607880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 229, 260, 280, 364, 455, 458, 520, 728, 910, 916, 1145, 1597, 1603, 1820, 1832, 2290, 2977, 3194, 3206, 3640, 4580, 5954, 6388, 6412, 7985, 8015, 9160, 11179, 11908, 12776, 12824, 14885, 15970, 16030, 20761, 20839, 22358, 23816, 29770, 31940, 32060, 41522, 41678, 44716, 55895, 59540, 63880, 64120, 83044, 83356, 89432, 103805, 104195, 111790, 119080, 145327, 166088, 166712, 207610, 208390, 223580, 290654, 365713, 415220, 416780, 447160, 581308, 726635, 731426, 830440, 833560, 1162616, 1453270, 1462852, 1828565, 2559991, 2906540, 2925704, 3657130, 4754269, 5119982, 5813080, 7314260, 9508538, 10239964, 12799955, 14628520, 19017076, 20479928, 23771345, 25599910, 33279883, 38034152, 47542690, 51199820, 66559766, 95085380, 102399640, 133119532, 166399415, 190170760, 266239064, 332798830, 665597660, 1331195320]

約数ペア:

[(1, 1331195320), (2, 665597660), (4, 332798830), (5, 266239064), (7, 190170760), (8, 166399415), (10, 133119532), (13, 102399640), (14, 95085380), (20, 66559766), (26, 51199820), (28, 47542690), (35, 38034152), (40, 33279883), (52, 25599910), (56, 23771345), (65, 20479928), (70, 19017076), (91, 14628520), (104, 12799955), (130, 10239964), (140, 9508538), (182, 7314260), (229, 5813080), (260, 5119982), (280, 4754269), (364, 3657130), (455, 2925704), (458, 2906540), (520, 2559991), (728, 1828565), (910, 1462852), (916, 1453270), (1145, 1162616), (1597, 833560), (1603, 830440), (1820, 731426), (1832, 726635), (2290, 581308), (2977, 447160), (3194, 416780), (3206, 415220), (3640, 365713), (4580, 290654), (5954, 223580), (6388, 208390), (6412, 207610), (7985, 166712), (8015, 166088), (9160, 145327), (11179, 119080), (11908, 111790), (12776, 104195), (12824, 103805), (14885, 89432), (15970, 83356), (16030, 83044), (20761, 64120), (20839, 63880), (22358, 59540), (23816, 55895), (29770, 44716), (31940, 41678), (32060, 41522)]