54721520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:215

約数の個数: 160

約数和(自身を含む): 158323200

約数和(自身を除く): 103601680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 37, 38, 40, 56, 70, 74, 76, 80, 95, 112, 133, 139, 140, 148, 152, 185, 190, 259, 266, 278, 280, 296, 304, 370, 380, 518, 532, 556, 560, 592, 665, 695, 703, 740, 760, 973, 1036, 1064, 1112, 1295, 1330, 1390, 1406, 1480, 1520, 1946, 2072, 2128, 2224, 2590, 2641, 2660, 2780, 2812, 2960, 3515, 3892, 4144, 4865, 4921, 5143, 5180, 5282, 5320, 5560, 5624, 7030, 7784, 9730, 9842, 10286, 10360, 10564, 10640, 11120, 11248, 13205, 14060, 15568, 18487, 19460, 19684, 20572, 20720, 21128, 24605, 25715, 26410, 28120, 36001, 36974, 38920, 39368, 41144, 42256, 49210, 51430, 52820, 56240, 72002, 73948, 77840, 78736, 82288, 92435, 97717, 98420, 102860, 105640, 144004, 147896, 180005, 184870, 195434, 196840, 205720, 211280, 288008, 295792, 360010, 369740, 390868, 393680, 411440, 488585, 576016, 684019, 720020, 739480, 781736, 977170, 1368038, 1440040, 1478960, 1563472, 1954340, 2736076, 2880080, 3420095, 3908680, 5472152, 6840190, 7817360, 10944304, 13680380, 27360760, 54721520]

約数ペア:

[(1, 54721520), (2, 27360760), (4, 13680380), (5, 10944304), (7, 7817360), (8, 6840190), (10, 5472152), (14, 3908680), (16, 3420095), (19, 2880080), (20, 2736076), (28, 1954340), (35, 1563472), (37, 1478960), (38, 1440040), (40, 1368038), (56, 977170), (70, 781736), (74, 739480), (76, 720020), (80, 684019), (95, 576016), (112, 488585), (133, 411440), (139, 393680), (140, 390868), (148, 369740), (152, 360010), (185, 295792), (190, 288008), (259, 211280), (266, 205720), (278, 196840), (280, 195434), (296, 184870), (304, 180005), (370, 147896), (380, 144004), (518, 105640), (532, 102860), (556, 98420), (560, 97717), (592, 92435), (665, 82288), (695, 78736), (703, 77840), (740, 73948), (760, 72002), (973, 56240), (1036, 52820), (1064, 51430), (1112, 49210), (1295, 42256), (1330, 41144), (1390, 39368), (1406, 38920), (1480, 36974), (1520, 36001), (1946, 28120), (2072, 26410), (2128, 25715), (2224, 24605), (2590, 21128), (2641, 20720), (2660, 20572), (2780, 19684), (2812, 19460), (2960, 18487), (3515, 15568), (3892, 14060), (4144, 13205), (4865, 11248), (4921, 11120), (5143, 10640), (5180, 10564), (5282, 10360), (5320, 10286), (5560, 9842), (5624, 9730), (7030, 7784)]