398513920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:670

約数の個数: 144

約数和(自身を含む): 1106703360

約数和(自身を除く): 708189440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 112, 128, 140, 158, 160, 224, 256, 280, 316, 320, 395, 448, 553, 560, 563, 632, 640, 790, 896, 1106, 1120, 1126, 1264, 1280, 1580, 1792, 2212, 2240, 2252, 2528, 2765, 2815, 3160, 3941, 4424, 4480, 4504, 5056, 5530, 5630, 6320, 7882, 8848, 8960, 9008, 10112, 11060, 11260, 12640, 15764, 17696, 18016, 19705, 20224, 22120, 22520, 25280, 31528, 35392, 36032, 39410, 44240, 44477, 45040, 50560, 63056, 70784, 72064, 78820, 88480, 88954, 90080, 101120, 126112, 141568, 144128, 157640, 176960, 177908, 180160, 222385, 252224, 311339, 315280, 353920, 355816, 360320, 444770, 504448, 622678, 630560, 707840, 711632, 720640, 889540, 1008896, 1245356, 1261120, 1423264, 1556695, 1779080, 2490712, 2522240, 2846528, 3113390, 3558160, 4981424, 5044480, 5693056, 6226780, 7116320, 9962848, 11386112, 12453560, 14232640, 19925696, 24907120, 28465280, 39851392, 49814240, 56930560, 79702784, 99628480, 199256960, 398513920]

約数ペア:

[(1, 398513920), (2, 199256960), (4, 99628480), (5, 79702784), (7, 56930560), (8, 49814240), (10, 39851392), (14, 28465280), (16, 24907120), (20, 19925696), (28, 14232640), (32, 12453560), (35, 11386112), (40, 9962848), (56, 7116320), (64, 6226780), (70, 5693056), (79, 5044480), (80, 4981424), (112, 3558160), (128, 3113390), (140, 2846528), (158, 2522240), (160, 2490712), (224, 1779080), (256, 1556695), (280, 1423264), (316, 1261120), (320, 1245356), (395, 1008896), (448, 889540), (553, 720640), (560, 711632), (563, 707840), (632, 630560), (640, 622678), (790, 504448), (896, 444770), (1106, 360320), (1120, 355816), (1126, 353920), (1264, 315280), (1280, 311339), (1580, 252224), (1792, 222385), (2212, 180160), (2240, 177908), (2252, 176960), (2528, 157640), (2765, 144128), (2815, 141568), (3160, 126112), (3941, 101120), (4424, 90080), (4480, 88954), (4504, 88480), (5056, 78820), (5530, 72064), (5630, 70784), (6320, 63056), (7882, 50560), (8848, 45040), (8960, 44477), (9008, 44240), (10112, 39410), (11060, 36032), (11260, 35392), (12640, 31528), (15764, 25280), (17696, 22520), (18016, 22120), (19705, 20224)]