28408680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:160

約数の個数: 192

約数和(自身を含む): 99740160

約数和(自身を除く): 71331480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 47, 60, 69, 72, 73, 90, 92, 94, 115, 120, 138, 141, 146, 180, 184, 188, 207, 219, 230, 235, 276, 282, 292, 345, 360, 365, 376, 414, 423, 438, 460, 470, 552, 564, 584, 657, 690, 705, 730, 828, 846, 876, 920, 940, 1035, 1081, 1095, 1128, 1314, 1380, 1410, 1460, 1656, 1679, 1692, 1752, 1880, 2070, 2115, 2162, 2190, 2628, 2760, 2820, 2920, 3243, 3285, 3358, 3384, 3431, 4140, 4230, 4324, 4380, 5037, 5256, 5405, 5640, 6486, 6570, 6716, 6862, 8280, 8395, 8460, 8648, 8760, 9729, 10074, 10293, 10810, 12972, 13140, 13432, 13724, 15111, 16215, 16790, 16920, 17155, 19458, 20148, 20586, 21620, 25185, 25944, 26280, 27448, 30222, 30879, 32430, 33580, 34310, 38916, 40296, 41172, 43240, 48645, 50370, 51465, 60444, 61758, 64860, 67160, 68620, 75555, 77832, 78913, 82344, 97290, 100740, 102930, 120888, 123516, 129720, 137240, 151110, 154395, 157826, 194580, 201480, 205860, 236739, 247032, 302220, 308790, 315652, 389160, 394565, 411720, 473478, 604440, 617580, 631304, 710217, 789130, 946956, 1183695, 1235160, 1420434, 1578260, 1893912, 2367390, 2840868, 3156520, 3551085, 4734780, 5681736, 7102170, 9469560, 14204340, 28408680]

約数ペア:

[(1, 28408680), (2, 14204340), (3, 9469560), (4, 7102170), (5, 5681736), (6, 4734780), (8, 3551085), (9, 3156520), (10, 2840868), (12, 2367390), (15, 1893912), (18, 1578260), (20, 1420434), (23, 1235160), (24, 1183695), (30, 946956), (36, 789130), (40, 710217), (45, 631304), (46, 617580), (47, 604440), (60, 473478), (69, 411720), (72, 394565), (73, 389160), (90, 315652), (92, 308790), (94, 302220), (115, 247032), (120, 236739), (138, 205860), (141, 201480), (146, 194580), (180, 157826), (184, 154395), (188, 151110), (207, 137240), (219, 129720), (230, 123516), (235, 120888), (276, 102930), (282, 100740), (292, 97290), (345, 82344), (360, 78913), (365, 77832), (376, 75555), (414, 68620), (423, 67160), (438, 64860), (460, 61758), (470, 60444), (552, 51465), (564, 50370), (584, 48645), (657, 43240), (690, 41172), (705, 40296), (730, 38916), (828, 34310), (846, 33580), (876, 32430), (920, 30879), (940, 30222), (1035, 27448), (1081, 26280), (1095, 25944), (1128, 25185), (1314, 21620), (1380, 20586), (1410, 20148), (1460, 19458), (1656, 17155), (1679, 16920), (1692, 16790), (1752, 16215), (1880, 15111), (2070, 13724), (2115, 13432), (2162, 13140), (2190, 12972), (2628, 10810), (2760, 10293), (2820, 10074), (2920, 9729), (3243, 8760), (3285, 8648), (3358, 8460), (3384, 8395), (3431, 8280), (4140, 6862), (4230, 6716), (4324, 6570), (4380, 6486), (5037, 5640), (5256, 5405)]