318436960

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 144

約数和(自身を含む): 825778800

約数和(自身を除く): 507341840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 76, 80, 95, 109, 124, 152, 155, 160, 190, 218, 248, 304, 310, 380, 436, 496, 545, 589, 608, 620, 760, 872, 961, 992, 1090, 1178, 1240, 1520, 1744, 1922, 2071, 2180, 2356, 2480, 2945, 3040, 3379, 3488, 3844, 4142, 4360, 4712, 4805, 4960, 5890, 6758, 7688, 8284, 8720, 9424, 9610, 10355, 11780, 13516, 15376, 16568, 16895, 17440, 18259, 18848, 19220, 20710, 23560, 27032, 30752, 33136, 33790, 36518, 38440, 41420, 47120, 54064, 64201, 66272, 67580, 73036, 76880, 82840, 91295, 94240, 104749, 108128, 128402, 135160, 146072, 153760, 165680, 182590, 209498, 256804, 270320, 292144, 321005, 331360, 365180, 418996, 513608, 523745, 540640, 584288, 642010, 730360, 837992, 1027216, 1047490, 1284020, 1460720, 1675984, 1990231, 2054432, 2094980, 2568040, 2921440, 3351968, 3980462, 4189960, 5136080, 7960924, 8379920, 9951155, 10272160, 15921848, 16759840, 19902310, 31843696, 39804620, 63687392, 79609240, 159218480, 318436960]

約数ペア:

[(1, 318436960), (2, 159218480), (4, 79609240), (5, 63687392), (8, 39804620), (10, 31843696), (16, 19902310), (19, 16759840), (20, 15921848), (31, 10272160), (32, 9951155), (38, 8379920), (40, 7960924), (62, 5136080), (76, 4189960), (80, 3980462), (95, 3351968), (109, 2921440), (124, 2568040), (152, 2094980), (155, 2054432), (160, 1990231), (190, 1675984), (218, 1460720), (248, 1284020), (304, 1047490), (310, 1027216), (380, 837992), (436, 730360), (496, 642010), (545, 584288), (589, 540640), (608, 523745), (620, 513608), (760, 418996), (872, 365180), (961, 331360), (992, 321005), (1090, 292144), (1178, 270320), (1240, 256804), (1520, 209498), (1744, 182590), (1922, 165680), (2071, 153760), (2180, 146072), (2356, 135160), (2480, 128402), (2945, 108128), (3040, 104749), (3379, 94240), (3488, 91295), (3844, 82840), (4142, 76880), (4360, 73036), (4712, 67580), (4805, 66272), (4960, 64201), (5890, 54064), (6758, 47120), (7688, 41420), (8284, 38440), (8720, 36518), (9424, 33790), (9610, 33136), (10355, 30752), (11780, 27032), (13516, 23560), (15376, 20710), (16568, 19220), (16895, 18848), (17440, 18259)]